newbie questions!! underfloor cooling

[steveandzoe]

Hi all,

I'm new to this site and i was wondering if anyone can offer me some advice. I whish to install underfloor cooling/heating in my house in the south of france, I just have a couple of questions I would like some help with.

1. On a normall underfloor heating system there is a blending valve which mixes the hot water from the boiler (which in my case is a 12Kw air source heat pump) with the water in the underfloor circuit and then shuts of the flow of water from the boiler when the set temperature is reached, however the minimum temperature that i can set the blending valve to is 35C so do I need some sort of bypass valve to operate the system in cooling? (I'm told the water temp is around 17C).

2. I have read that a humidistat should be used with the system to prevent condensation build up on the floor is this necessary?.

3. I may go for actuators on the manifolds and thermosats in each room for better control (3 bed up + bathroom and 2 rooms down) Does anyone know of a good control system for a set up like this to operate heating and cooling?.

Thanks for any help you can offer me!!!

Steve.

 

[ecowarm]

You may get more help on this subject if you posted in the renewable energy forum

 

[steveandzoe]

Good point!!! I will re-post it Thanks

 

[SimonJohns]

What's the point in underfloor cooling

Basic physics
Heat rises
Cold falls

Underfloor heating is perfect because it rises uniformly

Cooling. You may be lucky and get cold ankles

 

[steveandzoe]

I agree with the physics but apparently it can cool a well insulated room by around 5 degrees and as long as we sit on bean bags on the floor it might help with the 35C summers!! Besides I keep my beer on the floor!!! :drool5:

 

[core heating]

maybe we should patent above ceiling cooling

 

[SimonJohns]

maybe we should patent above ceiling cooling

You can get radiant ceiling panels. I believe they can be used for this too

 

[REDSAW]

concrete mate