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I have an underfloor heating system downstairs and a radiator system upstairs, the radiators all run from a central manifold. The heat input is from a pellet boiler with internal pump, the UF circuit has it's own additional pump. When the underfloor heating system is on I cannot get heat to go...

Aircrete blocks!! I am building a new build and finding it a bugger to make decent fixings, so far I have found 3" wood screws are my best bet screwing into a small pilot hole. I am thinking of using injected resin for stronger points or using a wood plate with several screws and then fixing...

Anyone bought a truck load of dense blocks recently? If I buy in bulk they must be cheaper I will need over 2000 just for starters and then i've got a full house to build after that. The area is Cumbria but I think they would deliver quite a way for big quantities. Thanks Tul

Anyone got any experience good or bad for a rainwater caputure/recyling system for a house. I'm going to build from scratch so I guess now is the time to do it. thanks Tul

I am building a new concrete wall alongside a small stream, there is an initial sketch for a collection duct to be incorporated into the back of the wall to use for a water source heat exchanger, anyone used a small stream for this purpose. What tech specs, manufacturers, temp conditions etc...

I have a 33m long by 2m high reinforced concrete retaining wall to build along a riverbank which will then be stone faced. I have two solutions from the structural engineer 1) hire in shuttering and pour the concrete 2) build a 150mm cavity block wall and fill that with concrete both will have...

I have a lot of double glazed panes to fit in hardwood frames. I have been researching this and it isn't easy. If I look at NHBC guidance they only accept dry vented and drained installation so I guess this is a good start. Also it seems putty should be kept miles away from the edge strip as...

Hi, I want to use a pad and lintol design for a foundation, this to protect a nearby tree (it's for a single story extension). The pad at 200mm thick has to be a min 600mm below ground, I then presume I have to build up out of the ground to sit the lintols on. What is the best way to build up...