In February of 2021, there were thousands of outdoor hot water heaters lost. It was thought by most that it was because in Texas, tankless hot water heaters aren't supposed to be installed on the outside. But unbeknownst to most Texans, there is a way to winterize tankless hot water heaters.
If your outdoor tankless water heater starting to get a hard freeze again, it’s really imperative to open a cold and a hot faucet. Don’t let it drop for it’ll freeze. You need to have a pretty heavy dribble though not a full stream and do it on the cold side.
The trick for the hot side is that these are built for flow rate which means that the motion of water flowing through it gets it to turn on. You need to have somebody on a hot faucet while you…
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