dpmiller
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Everything posted by dpmiller
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The flow pressure for the loops will not be anywhere near that. I've 600-odd metres over 12 loops and the pump is running at a head of 1.4m and using 12W in the process. I've no actuators installed so this is pretty much constant. Now the ASHP's circulating pumps Main and boost) are probably taking about 60W at the minute, but the main internal one is on PWM control and consumption falls to under 30W when the heat requirement tails off.
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Food Waste Caddy built in to worktop - Smell?
dpmiller replied to puntloos's topic in Kitchen Units & Worktops
is the OP on a public sewer or a treatment plant? -
got to be careful with those adaptors tho, they're not good at higher currents and I've seen the odd one that the earth tang doesn't contact the plug "as delivered", needing an bit of a bend to fit safely.
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Help with my Master Wing Design - 8.5 x 5m
dpmiller replied to puntloos's topic in New House & Self Build Design
put a lock on the door? -
The inverter looks like it tripped off the bus. I've had mine do this if power cycled too rapidly, have you seen any mains dips?
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Another 'Cool Energy' heatpumps thread
dpmiller replied to HughF's topic in Air Source Heat Pumps (ASHP)
1m2 isn't an enormous coil... -
Another 'Cool Energy' heatpumps thread
dpmiller replied to HughF's topic in Air Source Heat Pumps (ASHP)
Good Q. But adding zoning might be a complexity too far... -
Another 'Cool Energy' heatpumps thread
dpmiller replied to HughF's topic in Air Source Heat Pumps (ASHP)
Yep, they're definitely a version of the Sprsun unit -
Unpossible.
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Was the boiler turning on? Were the two big pipes hot?
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single zone pump set?
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so your algae is green. Over here it tends to be red/brown... what temperature is the room held at again please?
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Airtightness test recommendation in NI
dpmiller replied to cwr's topic in Energy Efficient & Sustainable Design Concepts
I used Michael Berryman, ATTNI+ -
what temperature is the room kept at?
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the windy roost Remote Guest network
dpmiller replied to Jenki's topic in Networks, AV, Security & Automation
^ I've two old routers hung off our Huawei 4g one, a Talktalk and a Draytek. All three are playing nicely with each other. -
Control - multiple zones and heat/cool sources
dpmiller replied to RichardL's topic in General Alternative Energy Issues
UFH wiring hubs can have a dry contact for each channel and you can do nifty linking of the inputs and outputs to give different combos. I've one of these (Hetta branded, but they don't sell them any more) https://www.aliexpress.com/item/4000221789143.html with four thermostats. Multiple stats can be assigned to a channel, and channels can be paralleled also. Plus an additional dry, and a live mains contact. -
I think that cover just clips over- try gently levering away from the door just where the hole is for the Allen...
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How fancy are you wanting? We just wanted UPVC and got good pricing and service from Turkingtons.
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it's an NN-CF760, but looking at the current range you'd probably need to go up to one of the steam units to get a comparable spec?
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^ do that a couple of times and you could've paid for an air fryer... We've a Panasonic flatbed combi and it's a super thing. It will do all three modes simultaneously (has a proper oven element) and it's inbuilt programs for pizza and jacket spuds are very good indeed.
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Air Source Heat Pump - general question
dpmiller replied to 0llie's topic in Air Source Heat Pumps (ASHP)
some info here ST https://refrigerationclub.com/oil-compatible-coolant/ -
Air Source Heat Pump - general question
dpmiller replied to 0llie's topic in Air Source Heat Pumps (ASHP)
no the logic is that the startup of the compressor is controlled, and so oil and gas can be gently redistributed rather than with a switch-start 1ph machine the pump is "blocked" from starting by the liquid refrigerant same thing applies to air compressors- a switch-start machine has a valve built into the pressure switch to "unload" the pump head until the rpms and output pressure build. Switching the compressor on at the wall instead of the airswitch results in a humming noise and a blown fuse...
