Most warranties from manufacturers don’t cover the damage caused due to the freezing process. Prevention is the most effective strategy in dealing with freezing water heater.
Tankless Water Heating System Done Froze Up
Cold weather does not just cause the pipe that connects to and from your tankless to freezebut it can also cause chaos because the internal components within the tank can also freeze. For the cold and hot isolation valves, take off all drain cap. I was going to say “yeah pipes running through an exterior wall could cause problems” however your scenario sounds more problematic. A friend of mine who is a plumber came by this morning, holding a torch. If you tell me, “covering up the hose region with a towel and hanging a hair dryer for around 15 minutes” I’m left thinking the method you are using isn’t working. Take the towels off and direct the dryer directly at the pipes connecting the WH with the water line since this is probably what’s frozen. Hot water will be in a state of pressure which means it could “shoot out” from the unit.
Can Tankless Heaters be used for water heating? have Freeze Protection?
The heater and pipes to freeze when the heat is turned not being used and plumbing isn’t frequently utilized. If your pipes appear to be working according to plan, it’s time to examine your water heater. It’s still possibleand essential to investigate. It eliminates the possibility of standing water freezing , which could damage internal components. It will also save you the money that could have been used to purchase preventative measures.
Tips to Prevent the Tankless Heating System Safe From Freezing
Venting Systems – If the vent can be safely reached, put an enclosure at the top of the exhaust, including both the inlet and the exhaust. Switch off the energy to the tankless water heater. Most pipe heating cables are approved for use outside and stop pipes from freezing at temperatures of up to -50°C. If you reside in a colder climate you may want to look into the recirculation method. These systems are generally used to provide an immediate supply of warm water in an exact location but they also constantly work with the water heater and pipes. Tankless water heaters that are installed outside usually freeze when the water in the heater is exposed to frigid winter weather as well as the frigid temperatures associated with these systems. If your heater does not include these valves, then we recommend that you add them.
Awaking to a frozen tankless water heater could be a bit frightening. The ability to access hot water is particularly essential when it’s cold and that can be when your heater is more likely to freeze.
There could be a reason beyond winter’s frost, that stops this tankless heater from functioning in the way it is supposed to. It’s best to allow a professional to deal your heater whenever possible to ensure that the system isn’t damaged. In this instance you may be able to fix the heater however, you’ll probably need to replace the entire system. A regular maintenance schedule will make the tankless water heater last longer.
Fortunately, many tankless water heaters come with built-in freeze protection. The only risk is freezing damage if these safety mechanisms fail or fail to function. If the weather gets colder and temperatures drop in the tankless heater, it can freeze and start having other issues related to weather. Make sure the water flow is at a speed of 1/10th of a gallon every minute (or the width of the stream is .2 inches). Models with higher end specifications usually come with some kind of built-in freeze protection in their appliances. Rinnai is an excellent illustration of this, as they’ve integrated two lines protection into their units.
I was born within Rochester New York which have the same minimum of 3′ levels for pipes to water. In 1978, we endured more than 40 days of sub-freezing temperatures. Many of them were below zero degrees. Pipes were frozen everywhere, with some pipes never got buried any deeper than 3 feet! If you’d stayed with the soft copper supply line and no fittings, you were able to connect a welder to each end , and then slowly warm the pipe. If your supply line was any other reason was not fittings, you were out of luck and needed wait until the warmer weather returned. I’m not sure if this was because of the blow-dryer, warm towels or if the temperature began to rise slightly.
Electrical Supply – Switch off the supply of power for the tankless unit, either by disconnecting the power or turning an electrical circuit breaker off. This will ensure that the tankless heater from being damaged it be damaged by power outages or surges. The first thing you should check in the event that you do not have boiling water in your pipes is to check the plumbing. It’s much more probable that one pipe that go to or from your water heater has frozen than for the heater itself to become frozen.
Combining the local heat with worldwide heat (your heater in your home) is enough to melt any frozen pipes that you come across. It doesn’t need to be much of water – 0.1 to 0.2 Gallons per minute ought to suffice to stop freezing. This can be accomplished by gently turning on the tap off to the side of the house. Although it could cause an increase of a tiny amount in your water usage but avoiding a large repair for your water heater will definitely be worth the extra cost. Some tankless manufacturers that are higher-end incorporate them into their heaters. Alternatively, your plumber might have thought to include them in the process of installation. Take off the plug or the inline filter from both sides of hot water in order to make room for expansion if there’s still water inside the line that is beginning to have frozen. This may not be a brand new home but it could be the “new” place for him to live in.
Take off the cold water intake filter as well as any drain caps that are located at on the lower part of the heater. Another option is to install an additional battery source of power for the tankless heater. These are typically separate systems for ancillary use that aren’t used unless they are requested.
It is recommended to winterize your tankless water heater. is a great way to protect yourself especially in the event that you’ll be out of town during the winter. The weather can be unpredictable and sudden snow, ice and freezing storms are especially stressful if away from home to take appropriate precautions. Rinnai is a great example , as they’ve constructed two lines of defense in their equipment. There are some that even come with a thermostat designed to warm the pipes in times of temperatures that are below freezing. These pipes heating cables are not expensive and provide security from a major issue.