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Seal the Deal: Don't Let Your Heat Pump Leak Energy
Listed Grade 2 building with large modern extension. LG Therma V 16kw ASHP Underfloor heating + Rads 8kw pv solar 3 x 8.2kw GivEnergy batteries 1 x GivEnergy Gen1 hybrid 5.0kw inverter Manual changeover EPS MG4 EV
Listed Grade 2 building with large modern extension. LG Therma V 16kw ASHP Underfloor heating + Rads 8kw pv solar 3 x 8.2kw GivEnergy batteries 1 x GivEnergy Gen1 hybrid 5.0kw inverter Manual changeover EPS MG4 EV
I'll go with the standard grey open cell foam insulation you see indoors (as it's protected from UV), with the normal 45deg cut corners. Surely they cannot get that too wrong, can they?
Samsung 12kW gen6 ASHP with 50L volumiser and all new large radiators. 7.2kWp solar (south facing), Tesla PW3 (13.5kW)
Solar generation completely offsets ASHP usage annually. We no longer burn ~1600L of kerosene annually.
House-3 bed partial stone bungalow, 5kW Samsung Gen 6 ASHP (Self install)
6.9 kWp of PV
5kWh DC coupled battery
Blog: https://thegreeningofrosecottage.weebly.com/
Heatpump Stats: http://heatpumpmonitor.org/system/view?id=60
@editor yep... pipe size is more of concern maybe?
Insulation can certainly be improved!
Listed Grade 2 building with large modern extension. LG Therma V 16kw ASHP Underfloor heating + Rads 8kw pv solar 3 x 8.2kw GivEnergy batteries 1 x GivEnergy Gen1 hybrid 5.0kw inverter Manual changeover EPS MG4 EV
My first concern is that the hole through the brickwork doesn't appear to be sleeved.
There should be an outer casing which takes the weight of the wall above. That allows the inner pipes to move freely as they expand/contract with temperature.
To achieve that, all those existing pipes and electrical connections would need to be drawn out.
The hole should then be bored out with a TCT/Carbide core bit of an appropriate diameter for the sleeve. You don't need diamond bits to go through brick. It's 'soft'.
The hole needs to slop downwards to the outside at around 5°. Any rain or condensation will then not enter the house.
The sort of sleeve you'd be looking for would be a 110mm orange (underground) soil pipe.
That will leave enough space for pipe insulation to continue straight through the wall.
The best person to get this right is the home-owner. A DIY approach is preferable because you'll care about getting it right !
