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Showing results for tags 'cement use'.
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I'm installing a 16kw air source heat pump next week, and need to put in a spot to anchor it. I'm wondering if people can comment on how they've installed them and what has worked? I'm aware this ASHP will put off a lot of water (60-100l a day) and there's an inlet for sewer/waste water (it's a combined one system) about 4ft away from the installation point I've chosen. Should I put down some combination of sand, gravel and top off with cement? Or just small cement bits for the footings for the ASHP mount points? And what about water drainage? I can run some 40mm pipe from top of the pad, or a kind of soakaway. I'm just not quite sure whether 100l is too much to just drain in place. The ASHP is downslope slightly from the sewer inlet which is only about 2" below ground, so it's likely I'd need to run pipes above ground from ASHP. Would love to hear what you've done, and what has worked - and photos if you have 'em!
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I found the following technical intro to cement usage during home construction useful and thought it would help others at the bottom end of the learning curve like me. Now I know how many bricks can be laid when a full 25kg OPC bag is used. Published by Blue Circle. https://tarmac-bluecircle.co.uk/wp-content/uploads/2018/01/Builders-Guide-170118a.pdf
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