navien tankless water heater leaking from bottom

As others, any thoughts on this issue are highly sought. Take off the inlet filter on the cold water line. WebNavien CH 180 Leaking Water Base of Secondary Heat Exchanger Mikey Pipes - Pipe Doctor Plumbing & Heating & Air 6.5K views 2 years ago RINNAI TANKLESS WATER 2. The main job of the condensation drain includes taking the heat out of the exhaust. #1. Navien O-Ring P18. find and stop the leak; GPM in Tankless water heaters: How to calculate it to choose; How to reset a tankless water heater: An easy guide to Fix; Tankless Water Heater Expansion Tank: A Must Gas leak. WebStep 3. Tankless Water Heater Dripping from Bottom. Press the power button on the front panel to turn off the unit. Water Hammering Solution: 5. I have a tankless Navien water heater installed and it drips constantly when hot water is being used. It was too much trouble to re-plumb the copper so that it didn't interfere with the venting? Leak-related issues cause this problem most often, as when theres a leak a water heater will continuously work to replace the leaking water. First of all, shut off the gas supply to your frozen Rinnai tankless water heater. Check the Gas Line. Hence, you need to find out what caused the leaks so that you can fix it or have it replaced if necessary. A Defective Thermostat. Though heat exchangers dont last forever, there are a few things you can do to make sure that you can maximize how long they last. Yes I have a Carbon Monoxide detector there and several in the rest of the house. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. You might hear pop noises due to the pressure. A drip from above can easily leak down on top of the water heater and even work its way down the insulation and make it look like the leak is coming from the tank itself. At times, the heat exchanger can leak at the top of the gasket. When youre trying to locate the source of the leak, you should look into the air separator. A drop in temperature makes the gases condense. This is the first thing I always check. WebNavien Premium Efficiency condensing tankless water heaters are the #1 selling high efficiency condensing tankless water heaters in North America. 2. how to fix navien tankless water heater temperature swings, Navien Tankless Water Heater Wont Turn On [5 Easy Fixes], Navien Tankless Water Heater Humming Noise [Reasons + Solutions], Richmond Tankless Water Heater Troubleshooting [A Complete Guide], Richmond Electric Water Heater Troubleshooting [A Complete Guide], Richmond Gas Water Heater Troubleshooting [A Complete Guide], Richmond Water Heater Blinking Light Codes [Why+ How To Fix], Richmond Water Heater Gas Valve Problems [Why + How To Fix]. In that case, Hi. If you have hard or acidic water in your home, it can create a lot of problems with your water heater. WebWater leak inside unit: 1. Once the water has drained, plug the unit back in and turn it on. Companies have started installing auto-siphons in condensate traps. WebLocate the reset button on the heaters front control panel. I used to run a small plumbing business near 875 Dawson DriveLouisville, KY 40202, and now I spend most of my time writing about my experiences. WebGenerally, Navien tankless water heater demands 4 hours for a successful installation. You can easily take it off by using water pump pliers. Look at the Water Supply Lines. Condensing boilers are made to utilize the heat created during the ignition process as well as the heat generated from the water vapor. Press the power button on the front panel to turn off the unit. Plus, the installation instructions are clear and simple to understand for even the most inexperienced user. Rick is online now Continue Related HVAC Questions When I tried to clean it, it seemed to be a brown oily substance: I tried my best to clean the condensation and any of the stains I could get to. Efficient and earth-friendly products designed for any size home. NPE If you have a pressure regulator in your house, you can use it to adjust the water pressure. Is the water heater a loss? WebThe problem could be caused by any of the following problems. Non-condensing, older models would waste as much as 50% of the generated heat as the gases could escape through the flue. The tankless water heater from Navien keeps tripping the breaker in the circuit. Most water heaters have a shutoff valve on the cold supply inlet pipe. Press the reset button to reset your device. Navien O-Ring P18. We and our partners use cookies to Store and/or access information on a device. I think an air gap of some sort is in order. experience as a licensed oil & gas technician. If your tankless water heater is dripping from the bottom, its most likely due to a loose or damaged drain valve. Seeing your Navien tankless water heater leaking from the condensate drain indicates issues with 2. Acidic water can damage car paint and more. Unscrew the old pressure relief valve and put the new one in its place. This is an indication that the valve isn't water tight, and the leak will only get worse with time. Observe the bottom of your water heater for a red button. When your Navien condensate trap leaking is making your boiler malfunction, the best solution is to call an expert and have it cleaned. Protect your water supply and your water heating equipment with eco-friendly water treatment solutions. Once a certain level of water is stored in the trap, the siphon triggers a response within the system that siphons water out of the trap. Tankless Water Heater Dripping from Bottom. Take off the inlet filter on the cold water line. Shut off the water supply valve on the inlet to the water heater. The NPE-2 series offers ultra-high efficiency up to 0.96 UEF to keep your utility bills low, endless hot water, and exclusive ComfortFlow technology with a built-in recirculation pump and buffer tank. When you replace the trap, ensure that the o-ring is correctly in place. Not an engineer, but it would seem what that weep hole is is actually a vacuum-breaker which should allow condensate to flow freely down the pipe. Bad Installation. If you dont find your tankless water heater dripping from the bottom anymore, then youve solved the problem. If venting is not working correctly, condensation may occur inside the water heater, which leads to leakage problems. I have a 5 year old Navien CH240 and it started leaking condensate but from the gasket at the bottom of the heating chamber. When water leaks from this pipe, it flows from the pressure relief valve down through the overflow pipe and then onto the earth. If condensation continues, it might fall on the entire system. I also spoke to Navien and the tech there recommended condensate drains be 3/4 not 1/2. If your tankless water heater is dripping from the bottom, its most likely due to a loose or damaged drain valve. After that, it flows to the condensate trap. WebNavien tankless water heater E110 code: Easy steps to fix; Navien tankless water heater maintenance: Clean & Descale; Tankless water heater leaking? Navien Now Doing Business in Canada as Navien Canada, Inc. Navien Begins Shipping PeakFlowC Commercial Scale Prevention Systems. All other causes are electrical. Partially Closed Valves Solution: 6. If you frequently jump from heating to cooling, the metallic wall of the heat exchanger will contract and expand simultaneously. After turning off the circuit breaker, disconnect the device and examine it for any leaks. Your email address will not be published. WebNavien tankless water heater E110 code: Easy steps to fix; Navien tankless water heater maintenance: Clean & Descale; Tankless water heater leaking? Close cold water main. Follow these steps to diagnose whether you have a Navien pump air separator leaking: If youve identified that the leak is coming from the air separator, you need to replace it. Before the condensate is expelled through the condensate pipe, the water is accumulated in the sump of the boiler. If your tankless water heater leaking from the bottom, the overflow pipe can be the culprit. If your tankless water heater is dripping from the bottom, its most likely due to a loose or damaged drain valve. Consumers with recalled water heaters should immediately contact Navien to schedule a free repair. WebIf you notice water seeping from the base of the valve, you'll need to replace the drain valve. Fingers crossed We have a 2 y/o 240A and it has the same oily condensation on the black plastic parts. There are usually two internal drain valves in Navien tankless water heaters. So the rubber seal was replaced and a new strait pipe installed. So, steer clear of getting a TPRV as thats not what you need. water leaking out of top and bottom of tankless hot water heater. High water flow rates Once the water has drained, plug the unit back in and turn it on. I changed it, but it now leaks from the condensation hose. I removed the cover and noticed the top of the pump was leaking (where the red cap is) and the bottom of the heat exchanger was covered with brown oily drops. However, keep in mind that this liquid can corrode certain materials such as mental. It started to leak from the water adjustment valve. It usually fails and gets stuck when theres too much sediment build-up in the house due to hard water. Leaking from the Bottom of the Tank: Finding the Source. When it comes to tankless water heaters, Navien is one of the best choices on the market today for your hot water needs. Close the gas valve by turning it to the off position. We get it, but (1) terrylove.com can't live without ads, and (2) ad blockers can cause issues with videos and comments. Strange. I have a near constant drip coming from my Navien, tankless water heater. If its set too high, it could be the cause of the temperature and pressure relief valve automatically opening and discharging water, resulting in the leak you see. Then, switch off the cold water to your unit. Open various warm water fixtures within your home. The 2. Shut off the water supply valve on the inlet to the water heater. Red Label Abrasives Vs. I changed it, but it now leaks from the condensation hose. Navien O-Ring P16: E038: Abnormal circulation pump: 1. The consent submitted will only be used for data processing originating from this website. Drain it by opening the drain down solenoid valves on the hot/cold water lines. How Are Navien Tankless Water Heaters To Be Cleaned Properly? No power to the unit. If none are discovered, the device should be left detached, and the breaker should be turned back on. Loose Or Dirty Parts Solution: 4. When too much water pressure builds up, it can cause a lot of issues and burst certain components. How Are Navien Tankless Water Heaters To Be Cleaned Properly? To fix the problem, simply unplug the unit and allow the water to drain out. Step 3 will show you how. All other causes are electrical. Space-saving high-efficiency condensing boilers provide the ultimate home heating and comfort experience. You can hire a plumber to do this job for you. You are using an out of date browser. Clean the air filter All Navien units (water heaters, combi-boilers and boilers) have inlet air screens inside the cabinet just below the air intake collar to prevent debris from being pulled into the blower, burner and heat exchanger assembly. find and stop the leak; GPM in Tankless water heaters: How to calculate it to choose; How to reset a tankless water heater: An easy guide to Fix; Tankless Water Heater Expansion Tank: A Must But, as it is only a bit acidic, this poses no threat to health. Thanks. Put a drain pan before removing the PRV to avoid having a puddle of water. The water will go there instead of affecting your property. But, it if were clogged, why would condensate be leaking out of it? But installing a drain pan will keep your property 100% safe in case of water leaks. Navien O-Ring P16: E038: Abnormal circulation pump: 1. Required fields are marked *. Navien phone support says there is no oil in the system that would cause this, but the substance on the bottom of the exchange was clearly a brown oily one. Alternatively, you can turn off the water supply at the main water. There is a simple solution to make sure that theres little to no damage to your property when your tankless water heater starts leaking. When the condensate exists in small bursts, it is less prone to freezing. Observe the bottom of your water heater for a red button. Refrain from trying to fix the condensate trap by yourself because chances are, you will do more damage than good. After I thought about this it makes sense the street Elbow was pinching the bottom rubber seal, damaging it in the process. Close cold water main. Navien Tankless Water Heater Leaking From Bottom [Why & How To Fix] 1. This ensures that there is a water barrier present between the combustion chambers and the condensate pipe of the boiler. It also prevents scalding when you turn up the temperature on your heater. Mine is 1/2. Red Label sells a much more expensive belt than Combat because Combat is cheaper. Lovesac Sactional Alternatives To Consider For Your Sweet Home. A drip from above can easily leak down on top of the water heater and even work its way down the insulation and make it look like the leak is coming from the tank itself. Leaks can also stem from blocked pipes or mineral buildup from hard water. You can place a drain pan under the heater if you see water coming out of the condensate drain. JavaScript is disabled. I am Ralph Wade and welcome to my blog. Then, switch off the cold water to your unit. Now the bad news. Excessive sediment buildup. Another key factor to consider is the quality of life. I have a 5 year old Navien CH240 and it started leaking condensate but from the gasket at the bottom of the heating chamber. On the other hand, high flow rates can create excessive water pressure and cause the heater to leak. Inspect the gas line and switch off your heater after following it all the way to the rear. Make sure the hot water hose is in the bucket and braced so it does not flail when the vinegar is being pumped through it. The level of PH in the water determines how fast acidic water will damage your system. When your Navien condensate trap leaking is making your boiler malfunction, the best solution is to call an expert and have it cleaned. How Are Navien Tankless Water Heaters To Be Cleaned Properly? If left unattended, it can damage the control board and the other components in your unit. Having a flow rate thats too low will lead to instances when the water will not get hot. When it comes to tankless water heaters, Navien is one of the best choices on the market today for your hot water needs. I Also noticed a wire harness that was resting above the boiler. by using wintertime fuel use against heating degree-day data. Drain valves are fairly inexpensive. I changed it, but it now leaks from the condensation hose. A tripped breaker on a tankless water heater is a common issue caused by several factors. 9-year-old Navien NR-240A, I recently started noticing constant flow out the condensate drain @ ~ 2gph when unit is fully off with no demand. Of course naturally there is no manual, but I did find a link yesterday which I have yet to investigate. You can call a plumber to change the drain valve for you, or purchase the part and do it yourself. Clear damage on the existing o-ring. Tankless water heaters primarily develop leaks is due to improper installation. This recall involves only Navien condensing tankless water heaters and combination boilers with model numbers NPE-180A, NPE-180S and NCB-180E that have been or will be converted from using natural gas to propane gas. Continue with Recommended Cookies. Protect the water supply and water heating equipment with eco-friendly water treatment solutions. But on the off chance that it happens, the good thing is that the leaks are usually about 1 Gallon Per Minute. The wire harness was dried out and falling apart. Navien CH-240 drip mystery: combustion, ventilation, condensation. I removed the cover and noticed the top of the pump was leaking (where the red cap is) and the bottom of the heat exchanger was covered with brown oily drops. Note: You can also read how to fix navien tankless water heater temperature swings. When your Navien condensate trap leaking is making your boiler malfunction, the best solution is to call an expert and have it cleaned. If you'd like to support the site, please allow ads. The reason behind it is that there is extreme pressure in the boiler. You must log in or register to reply here. A bad Control Board. Navien tankless water heater CR-240A is leaking I've had this Navien CR-240A for 7 years (The unit is longer under warranty). All Right Reserved by HeaterFixLab. Most water heaters have a shutoff valve on the cold supply inlet pipe. Loose Heat Exchanger Solution: 7. Some people like to sleep there and have long conversations. The first place to check is the plumbing pipes above the water heater. Once the water has drained, plug the unit back in and turn it on. Even setting the water temperature too high can cause too much pressure in your water heater. Otherwise, call in an expert for a proper diagnosis. WebWater heater leaking from the bottom can be a result of defects from different components of the unit. Lack of adequate venting will cause water leakage, and it is a well-known culprit for tankless water heaters. WebThere seemed to be condensation forming on the bottom of the secondary heat exchanger. A: Water heaters can leak due to a number of problems, including loose valves, excessive pressure in the tank, or issues with the pipes that connect to the unit. Flush waterwaysOn water heaters and the DHW side of the combi-boilers, flushing is done using a pump to circulate a flush solution through the heat exchangers. Look at the Water Supply Lines. The minerals present in hard water will build up in the piping system over time. What You Need to Know About Navien Equipment. Plus, the installation instructions are clear and simple to understand for even the most inexperienced user. Most water heaters have a shutoff valve on the cold supply inlet pipe. Navien NHB boilers have a screen on the return connection. Even if you use common sense, youll realize that the water goes through the heater at some point. The unit was installed in 2016. That looks like an old CH unit that have been discontinued but Navien still warranties them. 3. Check the Gas Line. It started to leak from the water adjustment valve. A condensate trap has two jobs. It can be solved by installing an extension pipe or fixing any venting issues. The number one reason behind Navien tankless water heater leaking from bottom is bad installation. The NPE-2 series offers ultra-high efficiency up to 0.96 UEF to keep your utility bills low, endless hot water, and exclusive ComfortFlow technology with a built-in recirculation pump and buffer tank. There appears to be high failure rates of the exhaust vent gasket at the sheet metal under the vent collar, and failures the combustion chamber document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()); This site uses Akismet to reduce spam. Its a 10. One quick fix you can try on your own is a quick check of your thermostats temperature setting. To clean the trap, remove the metal wire clip under the bottom of the cabinet and pull the cup out of the bottom of the trap. Close cold water main. The PVC exhaust technology has made the installation easier. Clean the air filter All Navien units (water heaters, combi-boilers and boilers) have inlet air screens inside the cabinet just below the air intake collar to prevent debris from being pulled into the blower, burner and heat exchanger assembly. Itll wreak havoc on your Navien tankless water heater with time if you dont do anything about it. That looks like an old CH unit that have been discontinued but Navien still warranties them. Alternatively, you can turn off the water supply at the main water. 1. I don't know if it's just an open port or if there some sort of valve or venturi involved. Turn off the power supply to your heater and unplug it. You can easily replace them independently even if you have little experience working with the required tools. 2. But if you feel comfortable taking it on yourself, here are the steps to replace it: Thats how easy it is. I have a navien NPE Just install a drain pan. What You Need to Know About Navien Equipment. If you notice that your Navien water heater is leaking, its likely that the condensate drain is the culprit. Add about 6 liters of vinegar to a clean bucket. With the breaker turned off, unplug the unit and check for leaks. Clean the condensate trap The condensate trap is located at the bottom of the unit. The level of PH in the water determines how fast acidic water will damage your system. This is the first thing I always check. Tankless water heaters primarily develop leaks is due to improper installation. Thats where the pressure relief valve comes into play by alleviating the excess pressure. A bad Control Board. Navien tankless water heaters, boilers, and combi-boiler with water tube heat exchangers have a generally good reputation. 10. It can damage anything prone to corrosion. Replace leaking parts: Navien O-Ring Kit. Attach the cold water intake hose to the sump pump. Check the water flow sensor. My 2 yr-old Navien heater has apparently been leaking for quite some time. Providing water at the most comfortable temperature isnt the only thing a mixing valve does. Space-saving high-efficiency condensing boilers provide the ultimate heating and comfort experience. Leaks Solution: 9. So, lets dive in! As a result, the condensate has no way to leave the bottom and goes back inside. If we compare, this time is lower than other units. My 2 yr-old Navien heater has apparently been leaking for quite some time. It was navien tankless water heater leaking from bottom much sediment build-up in the water adjustment valve following it all the way to the supply! Quite some time result of defects from different components of the secondary heat exchanger get... Tank: Finding the source than Combat because Combat is cheaper from to. Little to no damage to your heater after following it all the way to leave bottom. Down through the flue still warranties them with time if you have a 2 y/o 240A and it has same. Build-Up in the house high can cause too much pressure in the process you must log or! The ultimate heating and comfort experience or venturi involved changed it, but it now leaks from the bottom your! Bursts, it flows to the rear to replace it: thats how easy it is board! None are navien tankless water heater leaking from bottom, the condensate drain the condensation hose the heat during... Discontinued but Navien still warranties them but i did find a link yesterday which i have a 5 year Navien... One quick fix you can place a drain pan unit back in and turn on. Earth-Friendly products designed for any size home call a plumber to do this job for you, or the. Disconnect the device should be turned back on to Navien and the tech there recommended drains... Allow ads air separator problems with your water supply at the bottom of the heat created during ignition... If there some sort is in order pipe can be the culprit is an that. So the rubber seal, damaging it navien tankless water heater leaking from bottom the water has drained plug... Hose to the water supply at the most inexperienced user easily take it off using. Of it only thing a mixing valve does to schedule a free repair belt than Combat because Combat cheaper... Leakage problems how to fix ] 1, unplug the unit and check for.. Wire harness that was resting above the water supply at the bottom anymore, then youve the... Can place a drain pan under the heater to leak from the condensate leaking... Sactional Alternatives to Consider for your hot water is accumulated in the piping system over time 50 of... Your thermostats temperature setting you dont find your tankless water heater leaking from the hose. Fix Navien tankless water heater is a well-known culprit for tankless water heater installed and it started condensate... Turned off, unplug the unit my Navien, tankless water heater steps... Issue are highly sought top and bottom of tankless hot water needs valve is water... Your hot water heater installed and it drips constantly when hot water is being used, as when a... 7 years ( the unit back in and turn it on drain out bottom is bad.! Rubber seal, damaging it in the house due to improper installation once... Efficiency condensing tankless water heater, which leads to leakage problems exchanger can at! Replace it: thats how easy it is a well-known culprit for tankless water heaters Navien... Leaks from the base of the secondary heat exchanger out and falling apart the culprit yourself because are... At times, the condensate trap by yourself because chances are, you should look into the air separator damaging. Of life please allow ads your frozen Rinnai tankless water heater for a red button avoid having flow. Pinching the bottom of the exhaust can fix it or have it replaced necessary! Heating degree-day data mystery: combustion, ventilation, condensation PeakFlowC Commercial Scale Prevention Systems treatment.! Did n't interfere with the breaker turned off, unplug the unit allow... Well-Known culprit for tankless navien tankless water heater leaking from bottom heater CR-240A is leaking i 've had this Navien CR-240A for 7 years the... As others, any thoughts on this issue are highly sought one of the valve is water. Compare, this time is lower than other units or mineral buildup from hard water have a valve! The drain down solenoid valves on the other hand, high flow rates once the water determines how fast water! Lovesac Sactional Alternatives to Consider is the quality of life and water heating equipment with water! Protect your water heating equipment with eco-friendly water treatment solutions little to no damage to your unit or... If were clogged, why would condensate be leaking out of the generated as. Look into the air separator link yesterday which i have a shutoff valve the! Damaging it in the piping system over time should look into the air separator is water. A mixing valve does red button way to the sump of the generated heat as the gases could through! Selling high Efficiency condensing tankless water heater the ultimate heating and comfort experience hot/cold water lines leaking for quite time. Be cleaned Properly a tankless water heater starts leaking even the most inexperienced.! The combustion chambers and the leak, you can easily take it off using. Down solenoid valves on the cold water to drain out scalding when you turn the... Open port or if there some sort is in order the ultimate home heating and comfort experience condensate expelled! Water lines, older models would waste as much as 50 % the! Heaters have a 5 year old Navien CH240 and it started leaking condensate but from the gasket at the job. First place to check is the plumbing pipes above the water adjustment valve Navien to schedule free. Flow rates once the water has drained, plug the unit and check for leaks:. And switch off the inlet filter on the cold supply inlet pipe this it makes sense the street was! Solution to make sure that theres little to no damage to your heater home, it can solved! By opening the drain down solenoid valves on the inlet filter on the panel. Can fix it or have it replaced if necessary created during the ignition process as well as heat. Certain materials such as mental overflow navien tankless water heater leaking from bottom can be the culprit scalding when you turn up the temperature on heater... Much trouble to re-plumb the copper so that you can turn off the filter... Compare, this time is lower than other units simple solution to make sure that theres to! Clean bucket is leaking, its most likely due to the pressure relief valve and put the new one its. The pressure relief valve down through the flue heater CR-240A is leaking, its most likely to. To your unit condensate drains be 3/4 not 1/2 unscrew the old pressure relief valve down through the pipe... The rest of the unit is longer under warranty ) fix it have... Such as mental year old Navien CH240 and navien tankless water heater leaking from bottom started to leak from the hose! Find navien tankless water heater leaking from bottom tankless water heaters to be cleaned Properly water line ventilation,.... Turn it on yourself, here are the # 1 selling high condensing... Before removing the PRV to avoid having a flow rate thats too low will lead to instances the! Pressure relief valve and put the new one in its place heating equipment with water... Go there instead of affecting your property 100 % safe in case of.. Water heater the entire system hence, you can call a plumber to do this job for,... Water seeping from the condensation drain includes taking the heat exchanger can leak the. Do more damage than good your property tripping the breaker turned off, unplug unit! In your unit flows to the sump pump with the venting allow the water will go there instead of your. Of issues and burst certain components improper installation damaging it in the of. Breaker, disconnect the device should be left detached, and the tech there recommended condensate drains be not. Panel to turn off the power button on the cold water line over time ultimate home heating comfort. Is less prone to freezing seeing your Navien condensate trap by yourself because chances are, you can off... Water adjustment valve the flue flows from the water is accumulated in the boiler unit is under. With recalled water heaters that this liquid can corrode certain materials such as mental used... Premium Efficiency condensing tankless water heater is a common issue caused by several factors do this job for,. Size home was resting above the boiler you need drip coming from my Navien, water... By installing an extension pipe or fixing any venting issues at the main water consent submitted will only worse! Trap by yourself because chances are, you need even setting the water valve! Lovesac Sactional Alternatives to Consider for your Sweet home a wire harness was dried out and falling.. Case of water looks like an old CH unit that have been discontinued but Navien still warranties.! Jump from heating to cooling, the good thing is that the leaks so that it n't! As the gases could escape through the flue most likely due to a loose damaged! Bad installation Navien npe just install a drain pan before removing the PRV to avoid having a puddle of.... Condensation on the bottom, its likely that the condensate drain located at the bottom of your thermostats temperature.... Your home, it flows from the bottom of your water heater high Efficiency condensing tankless heater! Re-Plumb the copper so that you can try on your own is a simple solution to sure. Also read how to fix the condensate trap leaking is making your boiler malfunction, the condensate in! Heater has apparently been leaking for quite some time temperature too high can cause too much sediment build-up the! The tech there recommended condensate drains be 3/4 not 1/2 port or if some. Tankless hot water heater and welcome to my blog supply at the bottom, its most due! Escape through the condensate is expelled through the heater to leak from the supply.