Not sure about their heat pumps but Wiessman make great boilers so I'd expect their heat to also be good quality.Any comments about Vitocal Heat pump by Weissman
Out of interest what does an assessment like this look like and who/where do you get one done? Is it an actual test (ie. seal the doors, pump in air and see how quickly it escapes) or more like the BER?Thanks Coldwarrier & noproblem for your advice. Good to know that their boilers are great. My house has been assessed and what is recommended is a 5k Vitocal by Weismann for my house. Its a semi D with 4, bedrooms
I had assessment done with a retrofit company to measure heat loss when a full insulation job is done e.g attic insulation, floor insulation external insulation ( in my case). A BER would then be achieved and the idea in order to achieve a BER rating to B2 at least for houses built before 2011.
OK thanks. I'm in a similar position to you, I'd love to move to a heat pump but only if it makes sense to do so. In the case of my home it would fare relatively well on a BER assessment (Xmm of insulation in the walls, Y insulation in the floors). The problem is when I started to do some DIY renovations I found areas where the insulation was missing in the walls, where the plasterboard had a gap of up to 100mm to the floor which was covered with the skirting board, gaps in the concrete floor covered by wooden floor etc etc.Not yet
If you were doing a big renovation that would make sense. In my scenario I’m wondering about adding the heat pump to a house that is already at a decent BER but without doing other renovation work, so the air tightness test would be to validate what is already in-place and make sure it is suitable for a heat pump install.As far as I understand it and in a common sense way, it is at the end, when all work has been completed that the air tightness test is carried out.
This is flawed logic in the sense that in order to know what / where to address from an air tightness pov, an initial test is paramount imo. Yes, by all means have a second one at the end for input into the BER assessment but it is generally too late then if unknown leaks are doscovered when all finished etc are in place.As far as I understand it and in a common sense way, it is at the end, when all work has been completed that the air tightness test is carried out.
Is the airtightness test not just an indication of the overall situation, rather than showing where any issues are? I've always thought fix the obvious problems, then do tests that actually identify where issues lie (I'd love to know more about these), do work, retest for overall airtightness? Or are there different types of tests?This is flawed logic in the sense that in order to know what / where to address from an air tightness pov, an initial test is paramount imo. Yes, by all means have a second one at the end for input into the BER assessment but it is generally too late then if unknown leaks are doscovered when all finished etc are in place.
The issue I find frequently when doing the surveys / tests is that the "obvious" problems to the client are rarely the main issues leading to somewhat wasted effort & resources by the client.Is the airtightness test not just an indication of the overall situation, rather than showing where any issues are? I've always thought fix the obvious problems, then do tests that actually identify where issues lie (I'd love to know more about these), do work, retest for overall airtightness? Or are there different types of tests?
- Not cheaper (so far the bills are more expensive - I'm basing this on energy used not cost. But I'm not comparing like with like due to working from home, and haven't had a full year yet. For reference we've heating set to 16-18 degrees, lower the temperature at night and have a solar panel. I suspect that the hot water is set to come on more than we need and when I get time I'll do a bit more investigating - though we were strongly recommended not to change the settings for it)
They probably have photovoltaic panels, which would make more sense with a heat pump (offsetting the electricity the heat pump uses) than the solar tubes for hot water.Generally it does not make sense (cost/benefit) to have both a heat pump and solar panels.
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