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How are you getting on? Perhaps, if its only when its cold, there is some sort of cold bride between the external wall and the plaster. Warm humid air is condensing on or behind the plaster because of the colder wall and this is what you can see. You should be able to tell more if you remove...

Thanks Foxhole. it was my presumption (dangerous I know) that kw range of the fire meant that it was ok to run it at half or third capacity as you say. I have double doors out of this room into a double height utility and a door the other side that leads upstairs. It was my hope that I could get...

The one I was looking at is rated Nominal 7kw - Low Output 4.8kw - High Output 9.5kw Id planned to use a direct air connection rather than a vent.

Hello. Im replacing an old stove which is 4kw. it never really got the room very warm. Its an old building with solid walls. Ive run though the calculations for the size of room and its suggesting 6kw would be ideal. Id like to use the wood burner to heat other rooms, either by leaving doors...

No that’s why I/George said remove in problem area only, you can always repoint back the small amount until you plan to do the full house. You ts an easy enough diy job once you’ve had a look. Might only need to be a ft squad or maybe just one stone. It does look like a very strong mix. Yup...

Just remove the strap pointing in problem area. It may not be the cause but your need to investigate it, you could always temporary repoint to match prior to pointing correctly. Regards the floor, even if it’s level it can cause issues especially if the outside is paved. Water can run off that...

Just to chuck my two twopenn'orth in. Rusty gives some great advice so worth following his recommendations. My house is of very similar if not the same construction (West Yorkshire). I’ve spent years of research to concluded that modern materials and methods are not compatible with the...

just to come back to this ive wacker plated the rubble that surrounds the cellar ceiling and levelled to it. ive then added a sand binding layer, a DPM and then cellotex insulation. I reduced my cellotex from 100mm to 80mm as discussed as im short on space to get back to a level with other...

Had a good read and watched the video. Seems like a good idea to recover extra heat (if you don’t mind the hiss) . Sadly it can’t force any heat into other rooms

Nice one, thanks for that.

As part of my renovation ive removed the old wood burner to be able to repair the fireplace etc. I have the opportunity to run wet UFH pipes while the floor is up and insulation is going down rather than leaving the existing rad on the wall. Ive been doing some basic research about wood burners...

Yep my thoughts exactly. I like the idea of the service batons too. Re the ventilation. I have planned to implemented a cellar system that pushes air out of the air brick. it has a humidistat and will reverese if the external air is less humid. It was something id seen Peter Ward of Heritage...

Thanks for the detailed info. As part of my own reading I had also read suggestions that use breathable martierials to allow moisture in and out via capillary action. As you rightly pointed out, this can introduce other problems and challenges. An alternative to doing this is to use model with...

Very informative and helpful. Thanks both. To clarify am I missing anything in my construction? VLC and vapour Membrane has been mentioned. My construction is Original solid wall -> VCL -> Insulation (that possibly includes the VCL) -> Plasterboard (that possibly includes the insulation and...

Actually I think im missing one on my plan. Whats the membrane bit? I had only considered installing the VCL barrier.

good idea I , ill have to knock a few stones out for that. Ill see what length lintels I can get. Would you do the same for the others or was I just unlucky with that thin one?

It never rains does it. Lol. So as part of my project to insulate the floor. I got down as low as the cellar cieling. 200mm approx. Just as I’m ready to do the sand blinding, a section of the cellar roof gave way. See pics. This section was 2 1/4” thick. All the other sections are 3 1/2”...

Yeh im not sure you need a cavity? Everything I’ve read suggests that you just need VCL.

Thanks for the suggestions. It’s an old house… over 200 years so walls are solid. Previous owner dot dabbed plaster board to the cold wall with no barrier or insulations. I places the board was soggy when I took it off. I want to do it right. My research concluded that a barrier is a must to...

Thanks for the detailed response. I think the first reaction is to look at the size and assume they are too small by modern standards but as you and others have suggested the old wood was slow grown and much better strength. I’ve got the wife to gently bounce above and it’s the joist not the...