ᐅ Heated surfaces in rooms with significantly increased heating demand
Created on: 27 Jan 2024 09:17
L
LostWolf
Since an extension is being built onto my existing property, there are unfortunately some issues with the heating load in this new area.
(Underfloor heating will be installed throughout the entire heated space.)
Because this room (living room) mainly consists of exterior walls, it has a heating load of 54.37 W/m² (1909 W).
In the rest of the ground floor, we have about 25 W/m².
Is there a way to heat this room in the extension (living room) without having to increase the heat pump’s supply temperature to nearly 40°C (104°F)?
Unfortunately, the heating surface is limited to the floor and cannot be increased.
Would using larger pipe diameters and increasing the flow rate help in this case (if that is even possible)?
(Underfloor heating will be installed throughout the entire heated space.)
Because this room (living room) mainly consists of exterior walls, it has a heating load of 54.37 W/m² (1909 W).
In the rest of the ground floor, we have about 25 W/m².
Is there a way to heat this room in the extension (living room) without having to increase the heat pump’s supply temperature to nearly 40°C (104°F)?
Unfortunately, the heating surface is limited to the floor and cannot be increased.
Would using larger pipe diameters and increasing the flow rate help in this case (if that is even possible)?
J
jens.knoedel27 Jan 2024 18:56LostWolf schrieb:
Is the heating load for your existing rooms also lower then? Partly much lower. My extension consists mostly of windows—so poor insulation values.
For example, the heating load for my living/dining area with about 50sqm (540 sq ft).
That’s exactly why you get the heating system properly sized. It might cost around €200 from the engineering office, and you receive a heating design calculated according to your wishes and specifications, including a pipe layout plan for the heating pipes (which you can specify—from 14/2 to 20/2 pipes) and the corresponding flow rates to be set.
LostWolf schrieb:
My heating load is needed at -11.6°C (11°F) (97456) It’s a bit warmer for me, but that doesn’t make much difference. My calculation was done for 22°C (72°F) room temperature, yours only for 20°C (68°F) (which I think is too cold!). That more than balances out.