dave2612

Thanks John, The rest of the house is prone to getting a small amount of mould on the windows in winter. Not improved insulation All fireplaces are blocked off All bathrooms have fans. Just FYI the 60m2 is one room, all open planned. thanks, Dave

we don't have one! Its an old 1930's property.

Hi, We have started out kitchen/diner extension which is approx a 60m2 space with no windows just sliding doors at the other side of where the kitchen will be installed. We will be installing an externally venting hob but was wondering what people do for ovens and microwaves that are built into units? Our oven will be against a wall while our hob is on an island. Do I need to bother? Is it good to put one in anyway? thanks! Dave

Sounds like the option of just installing UFH in the new extension would be the simplest. Another thought would be that as we want Aircon in the room anyway we could just use the Aircon to heat the room as well? Not sure how much this would cost to run Vs ufh?

What if we keep 'proper' UFH for the extension (blue area) and put a radiator in the green area, most of the floor will be covered by kitchen in the yellow area, so maybe we just insulate that really well under the existing floor? As the finished floor would be either vinyl or laminate a warm floor doesn't matter too much for us.

Thanks again John. So the issue is probably going to be the concrete floor and having to get it all dug out to get some insulation in.

Thanks Redbeard, I think the issue is there is a lot to backfill!

Thanks John, the area is all open plan, so are you suggesting that different zones will be better ? With regards to the insulation it's not a problem insulating the wooden floor or the extension, what might be an issue is the concrete floor, we'd have to dig the existing floor out to do this. Nu Heat reckon with the overlay system it's doesnt need the insulation? Thanks! Dave

I would appreciate some advice about the best way to install UFH for our extension and existing area. The areas marked on the picture are as follows… Yellow – existing timber floor with approx. 1.2m void Green – existing solid concrete floor Blue – new extension I assume the extension and existing concrete floor will be simple enough, though I’m assuming the concrete will have to be dug out to a certain depth. With regards to the yellow section, I think I have 2 options, backfill the void or batten and insulate running the pipes along the existing joists? Bearing in mind that the yellow section will have a kitchen and large island on it which won’t require the pipes to be run under. Or - we make things easy and get an overlay system like NuHeat LoProMax so we can have a single zone instead of two zones which we would have to have if we used the 2 different methods of UFH mentioned above? Thanks in advance for any advice!