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Old 12-28-2010, 02:37 PM   #1
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Coil mixing valve

I have a four level home wsith three zone valves. I have an oil fired hotwater baseboard heater which supplies the heat in the house and also I have a seperate Oil fired hot water heater to supply hot water for the house. My furnace is equipped with a coil inisde the the furnace to supply hotwater for the house. But was never CONNECTED.. I wanted to link the furnace coil to heat the hot water during winter months as the furnace is runing all the time any way, and when ever I need the hotwater for shower and wash erc. the seperate furnace comes on. I was talking to a plumber, he suggested to me that he need to install a coil mixing valve which is $59.00 and the labour $200.00. I have done a lot of household plumbing myself like installing showers, kitchen and bathroom faucets, cleaning furnaces etc. I have done the complete plumbing at my cottage including installing electric hotwater tank and other plumbings with pex pipes. Do you think, I can handle installing this coil mixing valve myself?


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Old 12-28-2010, 04:50 PM   #2
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Do you think, I can handle installing this coil mixing valve myself?
Ayuh,... Sure,... Why not,..??

You'll also want to add a water volume reducer at the entrance to that coil...

When I switched from electric dhw, to my boiler domestic coil, I just plumbed it straight through 3/4" copper....
The Hot shower lasted a few Seconds...
I added a volume reducer, 'n cut it down to 2.3gpm I think, 'n now the hot showers can last Forever...

The tempering valve you're talkin' about is only a few more solder connections...
I plumbed 1 in because I was told it's Necessary,...
Luckily, I added plenty of extra valving when I did it,...
I've had it by-passed almost from the start,...
I can Temper my own water, at the Faucet.... Don't need that valve cooling it off For me....
But that's just Me, I guess....

This is all without the storage tank,...


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