The End of Gas for new homes

[gensetsteve]

Just seen yr post Steve! That's exactly the question I'm trying to decide on! I've got an architect mate but I tend to glaze over after he's been techno-babbling for 10mins!

 

I guess the celotex is the answer so it does not become a heat sink. Possibly the way to go for that application. My workshop tends to be unused for weeks with the odd running in and out. To try and heat that sort of mass would take time.

[aspenarb]

Have a play with the this

Heating Calculator - Heat Loss Calculations

A room with a concrete floor on soil requires less of a heating requirement than one with a wooden floor or one with a suspended concrete floor. This came to my attention while working out rad sizes. I can only think that the concrete is drawing up that few degrees of heat that live in the ground.

 

Bob

[openspaceman]

Have a play with the this

Heating Calculator - Heat Loss Calculations

A room with a concrete floor on soil requires less of a heating requirement than one with a wooden floor or one with a suspended concrete floor. This came to my attention while working out rad sizes. I can only think that the concrete is drawing up that few degrees of heat that live in the ground.

 

Bob

 

Both the suspended floors have ambient air beneath them and this is taking heat away. The delta T across the floor is room temp-outside air temp. The solid floor connects to the whole soil depth beneath it so the delta T is room temp minus soil temp at depth (say never less than 10C). As time goes by the dry soil beneath the slab reaches an equilibrium and no more heat goes downward.

[wrsni]

Timber built, but with a massive, 16 inch thick concrete slab for the floor with 8" of celotex underneath it

 

Seems logical enough, using the concrete slab as a thermal store which then releases it's heat directly in to the living space but with insulation below it to prevent the heat being lost downwards.

 

The basic principle of underfloor heating (and before that, the storage radiator), just on three or four times the normal scale.

[wrsni]

I always think that's a good if old idea,

 

The original hot-house, using green waste from preceeding summer/autumn.

[kevinjohnsonmbe]

Both the suspended floors have ambient air beneath them and this is taking heat away. The delta T across the floor is room temp-outside air temp. The solid floor connects to the whole soil depth beneath it so the delta T is room temp minus soil temp at depth (say never less than 10C). As time goes by the dry soil beneath the slab reaches an equilibrium and no more heat goes downward.

 

 

Makes sense!

[GreenGui]

You should have a look at agenda 21- the sustainable plan for the 21st century!

 

I hear you Tony even if no one else does:thumbup1:

 

Regards