basic water floor heating question.

[bassman]

I have a OWB and i heat my home by running the water through an exchanger and the fan is run with the wall thermostat.
This year we did a kitchen reno and installed quik trac in the floor that uses 5/16 hose.
I am planning on using a 60 gallon water heater with a side arm or plate to heat the kitchen loops .
how do i control this ???
I know that i cant run 180 boiler water in the floor so i will have to control the heat in the water tank and i am not sure how to do this ??
then when i get the kitchen loop water to about 90 do i then shut off the flow when the room temp is where i want it ??
how are floors in shops and homes normally done??
thanks

shayne

 

[ericjeeper]

I am assuming that your 5/16

Is laid in a grout bed?
I have a heat exchanger hooked up off my boiler. I blend with the water coming back from my in floor loops.
It is a pretty easy set up. just basically tee your two lines together and put a valve in the bridge between em.. That way you can control the temp by the amount of flow you allow to go through the floor. Basically it mixes incoming hot with returning cooler and sends it back through again. Harder to explain for me than it was to hook up. Maybe someone else here can help me.

 

[trimmmed]

You need a tempering valve. The 180 water runs to it and you pipe return water to it. Then it has one outlet that it lets the water come out mixed, at a reduced temp. There are choices in temp ranges, I would try for a valve that lets out 140 degrees max.

Pretty similar to what eric says above just a different valve.

 

[rx7145]

If you are using a hot water tank for storage keep the thermostat's turned down so if the boiler runs out of wood the hot water tank kicks on, heating the water. That way you do not need to worry about adding anti-freeze to your system.

This is the system I have. I use a 80 gal tank and pump water from the boiler into the tank, the house zone pump pulls from the tank. (I have two pumps) I also run my pumps 24/7. Never been close to freezing. Though it does not get as cold here I don't see how it could freeze. Hope that helps...