This is a good time to save energy and on your taxes by replacing your old hot water tank with an instant hot water heater. Most of the new tankless hot water heaters qualify for a U. S. tax credit.
Those of us who live in the USA are slowly waking up to the idea of tank less on demand hot water heaters. Hot water users around the world have been using them for many years. We are just a little slow to accept some things. As our energy prices go up the idea will catch on.
I had a Paloma brand unit in an out building on a property I owned. It was fueled by propane and did not need electricity for control. It worked very well.
Eliminating the storage tank eliminates most of the energy waste. You can set them to make water hot enough to kill the bacteria (130 to 140F). Then mix it with cool water at the faucet to get your preferred temperature with out wasting energy.
On demand, hot water heaters are more costly to buy but are very energy efficient. The savings on your energy bill will pay back the extra cost long before they need to be replaced.
The other good thing about tankless water heaters is that, if they are the right size for your house, they never run out of hot water. You could invite everyone you know over to your house for a hot shower and the last one would be as good as the first one.
Sounds like an interesting theme for a party as long as you can afford the energy bill.
Rinnai and other brands make a full range of sizes to suit your needs. Some are all electric; some are fueled with either natural gas or propane and have electric ignition and control. Others are gas only and don’t need electric power. The larger whole house capacity units tend to be gas fueled.
Replacing an existing tank water heater may a lot more expensive than just the purchase price if changes are needed to accommodate a lager gas supply and vent. You do need a well-qualified contractor to do the job right.
Personally, I like the idea of having hot water even when there is a power failure. I would avoid the units that need electric for controls. I guess that comes from experiencing power outages in the cold part of the country.
If you are building a new house, an on demand hot water heater is by far the best choice.
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