infloor heating question for the Plumbers on S&M

[machinehead]

JP. I may be interested in the heater you have for sale. What are you asking for it?

For the last 15 years I have been using a 40 gal. hot water tank. I have the Gunn Fos pump set up on a thermostat. I have never had a problem except it may not be the most efficient.

Same here . No thermostat, just a valve on the pump to restrict flow. Hooked up to two 40 gallon hot water tanks in tandem. First tank is set to a lower temp than second tank. Floor is warm, and have never seen to run out of hot water.
Ageed not as efficient as a closed pressure boiler system, but seems to work great for the 5 to 6 months that it is used. One downside to infloor heat, if the outside temperatures warm quickly, it takes a day or two to regulate heat in room, as concrete slab takes a while to cool. Love the warm floor though !

 

[gates559]

How many sq ft you got? your not allowed to have your domestic and in-floor use the same tank.

I assume you are using nat gas but if your using electric make sure you dont cheap out and try to wire both elements to come on at the same time. Lots of people have had their homes burn from doing this.

 

[GYMBRAT]

How does one run glycol through the one tank and still use the tank for domestic use? Im stumped on that!.....

 

[mavverick]

They use a indirect storage water heater. Basically it has an internal coil that separates the medium

 

[gates559]

How does one run glycol through the one tank and still use the tank for domestic use? Im stumped on that!.....

you got a garage or a shop? no one uses glycol unless they are not going to be heating it constantly. Most attached garages are heated all winter so only need water, same as a house. glycol= waste of money

 

[GYMBRAT]

you got a garage or a shop? no one uses glycol unless they are not going to be heating it constantly. Most attached garages are heated all winter so only need water, same as a house. glycol= waste of money

House with attached garage. No glycol, ok. Even better.

 

[gates559]

just make sure the thermostat is turned up enough so it comes on and doesn't freeze. Wont be a problem unless you get a high tech digital thermostat that does heating and cooling. Id just get a cheap manual one so you dont have to worry about it.

 

[maxwell]

We run glycol in all of our in floor in the house,garage and shop. What would happen if there was a failure? At least glycol won't freeze and destroy everything? Again not a plumber but whoever set up all our systems obviously felt glycol was the way to go


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[rsaint]

We run glycol in all of our in floor in the house,garage and shop. What would happen if there was a failure? At least glycol won't freeze and destroy everything? Again not a plumber but whoever set up all our systems obviously felt glycol was the way to go


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I agree with u when you are talking old slab where the concrete is not insulated on the outside and the infloor is fairly close to outside pail of glycol is cheap insurance.

 

[GYMBRAT]

We run glycol in all of our in floor in the house,garage and shop. What would happen if there was a failure? At least glycol won't freeze and destroy everything? Again not a plumber but whoever set up all our systems obviously felt glycol was the way to go


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I have to agree with u 100% better safe than frozen and replacing floors........

 

[gates559]

It would have to get pretty cold for a long time to freeze. Your walls will be insulated and floor etc. The problem with the glycol is that it is hard on the heater and shortens its lifespan. Pick your poison I guess.