Last seen: Jun 20, 2025
@jamespa I have a hydronic baseboard heater in the kitchen but I don't think it will work as it only activates the fan above 35C water temp. Not wor...
What do you connect that to internally, I'm assuming standard radiators don't work?
Thanks both, I found the 3kW on a UK document somewhere though I don't have it to add here right now. We are at that point where the 5kW unit is...
Thanks for the comprehensive write-up, I am considering the same unit. Do you know what the turn-down or minimum modulation is on the unit and roug...
As far as I can tell my vented system would have a peak pressure of about 0.5 Bar, which technically does meet the absolute minimum pressure of the AS...
Thanks, this is what I was thinking about, so as long as heat energy can transfer back through the PHE into the primary circuit during defrost, then t...
@jamespa I don't understand any point in an air test, if that fails, then the pipes are then broken, and the system cannot be refilled without digging...
@jamespa I hope I'm wrong but I suspect you will get an error code if it gets too low. Vented systems are so much simpler, it would be nice if heat ...
Yup, I see no reason to artificially pressurize low temperature heating technology, but as far as I can see that's the method most Heat Pumps follow. ...
@jamespa nothing to do with the needed pressure. Current pipework is likely 60 years old, buried in concrete and as such in an unknown condition. C...
It seems to be saying that by separating the systems, then glycol usage can be reduced. I've heard about maintenance issues with anti-freeze valves,...
Thanks, so yeah yours is quite oversized, we are the opposite, we need to keep the huse warmer than the standard.
Latest Posts
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@judith good to know… I’ll continue to feed Wattson, an...
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RE: Vaillant AroTherm Plus 7kW
@jamespa I have a hydronic baseboard heater in the kitc...
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Here’s a little more technical detail/p>
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As far as I can tell my vented system would have a peak...
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There have been a few discussions dotted around (e.g. I...
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Having made some enquiries locally I have found a compa...
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