Plaster basement walls of lightweight concrete blocks and what to do with cast floor slab

[Irene byggare]

Hello, The basement consists of a large open space mostly below ground of 50m2 and a boiler room of 10m2, with a ceiling height of 225 cm. Walls made of lecablocks and the floor consists of a poured slab, I don't know about the insulation under this, but the house was built in 1984 (type house from Animonhus). The exterior walls have been insulated with Styrofoam since it was built, about 10 cm and are still dry with no visible moisture penetration. I want to create a nice and dry space of a simpler kind with a very limited budget. I think plastered walls are a good option, and the floor, well, there I would like some good advice. Considering installing some water radiators or alternatively an air/air heat pump, open to good advice here too. I am a pensioner and can no longer work myself, so I need professional help for the whole thing.

 

[GoForIt]

Hello, and welcome..

That sounds like a good solution.
If you have a water-based heating system, a fan radiator is a good suggestion for simple heating.
Don't forget ventilation of the space either.

 

[Irene byggare]

Hello, and welcome..

That sounds like a good solution.
If you have a hydronic heating system, a fan radiator is a good suggestion for simple heating.
Don't forget to ventilate the space as well.

Thanks for the response. I've opened up a few more vents, so that's sorted. The question is 6 hydronic radiators or 1 air/air pump, and what to do about the cast slab. I think hydronic underfloor heating will be expensive, especially since I don't know if it's insulated underneath. And electric coils are probably not an option for the same reason, but I do need to do something about the floor, which is rough and unattractive as it is now. Any good suggestions?

 

[GoForIt]

A waterborne fan radiator, as I suggested, is like an air/air heat pump inside, but instead of an electric compressor on the outside, it gets the heat from your existing waterborne system. It has the advantage of giving you a completely different climate in the room compared to regular radiators.

Regarding the floor, it depends on the conditions and what you intend to use the space for. A common approach is to use self-leveling compound to make the floor more even. Larger discrepancies are manually filled before. If you want a nicer surface on the floor, tiles are the right way.

 

[Irene byggare]

A waterborne fan radiator, as I suggested, is like an air/air heat pump inside, but instead of an electric compressor on the outside, it gets the heat from your existing waterborne system.
It has the advantage of providing a completely different climate in the room, compared to regular radiators.

Regarding the floor, it's dependent on conditions and what you plan to use the space for.
A common approach is to use leveling compound to make the floor more even. Larger discrepancies are manually filled in advance.
If you want a nicer surface on the floor, tiles are the right way to go.

Feels like a good idea to have tiles on top of leveling compound. The whole space should have a somewhat field-like "raw" look, and when I can afford a bit of extravagance, I might build some walls for a "wine cellar". Thanks for the great advice.