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Hi, I've got a Grant Vortex Pro combi installed in 2017. I've just noticed that the out let pipe from the PRV is dripping. I've had a plastic bag over it to see how much it is dripping and I would say its a couple of teaspoons over the past 5 hours. Central heating hasn't been on since...

Hi All, I posted on this subject back in 2018 and never really got to the bottom of it! But I have an issue where air seems to be trapped in the heat store/exchanger on the hot water side of things. It fizzes and gurgles, knocks and bangs in various degrees of loudness and frequency. At the...

Hi, I have been slowly upgrading a converted loft in my victorian semi. A couple of years ago I replaced the insulation in the rafters with PIR board. 100mm in between the rafters, 25mm underneath the rafter. 50mm gap between insulation in the rafters and batten for ventilation. At the...

Hi All, I am currently re-boarding my loft after lifting old chipboard to put down insulation. I am using 22mm P5 T&G Caberfloor boards. 2400mm x 600mm. The floor was previously strengthened and levelled by running 3x2 joists at right angles across the top of the existing 4x2 joists. The...

Hi All, I have a Grant Vortex Pro Combi 26 which is generally performing well but has a strange problem with a gurgling/fizzing/knocking noise when the Direct Hot Water pump is circulating. The central heating side is all nice and quiet. At first I thought the hot water was being over-heated...

In October I had the roof replaced on my victorian terraced house (new breathable felt, batons and synthetic slates). I have a small loft conversion set up with dwarf walls with crawl spaces into the attic space at the front and rear of the house. This was in place before the new roof was...