Tankless Water Heater [RE-wrenches]

[Dean T. Newberry]

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Hello y'All,
I am no fan of tankless water heaters for reasons discussed on this 
thread recently.
A better solution is to use a boiler and tank, not cheap but good.
The best in a very crowded marketplace is the Munchkin. 
http://www.htproducts.com/products/munchkinvwh/index.html
I recommend the VWH model for water heating. It has an onboard pump and 
controls.
There is a 24VAC transformer which will present a 24-7 load, small but 
possibly significant for an off grid system. I suppose you could isolate 
it with a digital time clock to lock it out during off demand hours.
The Munchkin is designed to circulate to a tank from which the hot water 
is drawn.
Use any tank size appropriate to the demand. ASME certification required 
for tanks larger than 250 gallons. I  have used stainless foam insulated 
tanks and electric water heaters as a tank. An aquastat at the tank 
operates the boiler.
Hard water will sludge the tank, I recommend using a descaler.

cul deant

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