11.2kW Ecodan

Manufacturer: Misubishi

Model: PUZ-WM112VAA

Type: ASHP

Arrangement: Mono

Area of Country: Midlands

Home Type: House - detached

Size: Square Metres: 149

Insulation Level: Maybe a 6/10? Built 1955 with a foot of insulation in the loft, double glazing, somewhat degraded cavity insulation

Heat Loss Calculation:  8.79kW at -2.9C

Type of Controller: Ecodan

Type of Control: Weather compensation, Ecodan FTC7 remote thermostat/controller

System Type: Radiators  

Total Output of Heat Emitters: heat loss 8.79kW, avg heat load 59W/m2 

Buffer Tank or Low Loss Header: Buffer tank

Secondary Pumps: 0

Solar PV System: 8 panels >10 years old

Power Diverter: No

Battery System: No

Aira 12kW - @gmuzz 

16Kw AIROSD

Manufacturer: Foshan

Model: 

QBKFXFC-016SRIType: ASHP

Arrangement: Mono

Area of Country: South Lancashire

Home Type: House - detached

Size: Square Metres: 220

Insulation Level: Maybe a 6/10? Older part built early 1800's, single wall construction, originally 2 cottages knocked into one in 1970's. Left hand side of house (LHS) and right hand side (RHS)extended in to 1970's with building regs of the day. New extension 2010 insulated cavity walls. Radiators to older part of the house, all changed to type 22. UFH to ground floor of extension 60 square metres and radiators to master bedroom upstairs. Double glazing throughout. Insulation to 300mm in loft.

Heat Loss Calculation: Not known

Type of Controller: Airosd

Type of Control: Can manually control return water temp to give a delta T of 4 degrees.

System Type: Radiators to older part and UFH to ground floor extension  

Total Output of Heat Emitters: Not known

Buffer Tank or Low Loss Header: No

Secondary Pumps: 3, one to UFH manifold, one to LHS and one to RHS all set at speed 1. Mainpump from ASHP set at highest constant pressure curve. 

Solar PV System: 10 panels 

Power Diverter: Solar iboost

Battery System: No

Forum Handle: KevB 

Manufacturer: Ideal

Model: 5kW

Type: ASHP

Arrangement: Mono

Area of Country: South England 

Home Type: House

Size: Square Metres: 91m2

Insulation Level: 5? 1980 built. Cavity insulation, double glazing 

Heat Loss Calculation: 4.8kW @ Amb. Temp, of: -2c

Type of Controller: weather comp with room influence. 1 thermostat (Halo) and TRVs but all fully open.

System Type: Radiators 

Total Output of Heat Emitters: 5kW

Buffer Tank or Low Loss Header: BT (do have a bypass but not used)

Secondary Pumps: 1

Solar PV System: no

Power Diverter: no

Battery System: no

Forum Handle: @lucia 

Manufacturer: Daikin

Model: EDLA06EV3

Type: ASHP

Arrangement: Monobloc

Region: SWest

Home type: Bungalow but hill built

Size: 98 sqm approx (+ cellar) 

Insulation level: 1970s/80 built; partial cavity filler; good loft insulation; ancient windows; suspended floor/cellar not yet. 

Heat loss: 4.8kw @ -3 but some things not accounted - eg cellar; exposed location; 

Type of Controller: No thermostat - strictly leaving water temp control and weather curve. TRVs fully open

System type: radiators (all new) 

Total output of emitters: ? 

Buffer tank: No. Low loss header

Secondary pumps: no

Solar PV: no

Diverter: no

Battery: no

Forum Handle: @davec

Manufacturer: Peak Energy

Model: 11kW V-Therm S-Maxi

Type: ASHP

Arrangement: Monobloc

Area of Country: North West England

Home Type: House, semi-detached

Size: Square Metres: 122m2

Insulation level: loft insulation, some suspended floor insulation, no cavity insulation

Heat Loss Calculation: 7kW @ Amb. Temp, of: -2C

Type of Controller: external EPH Thermostat, each radiator with TRV

Type of Control: Weather Compensation, Flow Temperature, Room Temperature via EPH thermostat

System Type: Radiators

Total Output of Heat Emitters: 11 triple column radiators and 2 towel rail radiators

Buffer Tank or Low Loss Header: BT, I think built in to the water cylinder

Secondary Pumps: No

Solar PV System: SunSynk 3.6kW Inverter with 3.5kWh panels

Power Diverter: Yes solar diverter, but switched off

Battery System: 10kWh house battery

Forum Handle: PickStick2804

Manufacturer: Worcester Bosch Compress AWF2000 10kW (Midea)

Model:Compress AWF2000 10kW (Midea Clone)

Type: ASHP

Arrangement: Monobloc

Area of Country: Yorkshire

Home Type: House

Size: Square Metres: 270

Insulation Level: 9 High

Type of Controller: Standard controller + Svenar RS485 into Home Assistant. Shelly EM power monitoring on ASHP and Immersion.

Type of Control: Weather Compensation (42@-5, 31@7) at £0.28p 0530:2330, aggressive curve 1 (55@-5, 54@7) at 7p 2330 to 0530. (just set this up as I type, I may have been cooked by morning)

System Type: UFH (solid slab on ground floor, between timber joists on 1st floor)

Buffer Tank or Low Loss Header: None

Secondary Pumps: 2 UFH Manifolds with Pump on each, actuators removed, flow balancing valves by room.

Solar PV System: No

Power Diverter: Yes - MyEnergi Eddi

Battery System: No

All primary flow & return pipe 28mm with long radius bends or 45s where possible. Armacell 25mm insulation inside - Primary Pro insulation outside. Antifreeze valves, no glycol.

279L Unvented indirect cylinder with 2.96m2 coil

Geek level 11.

Heliotherm 8kW

Forum Handle: MK4

Manufacturer: Midea

Model: M Thermal Arctic HT Series 16Kw using R290 MCH-V16WD2RN7

Type: ASHP

Arrangement: Mono

Area of Country: Northern suburb of Athens, Greece (Municipality of Dionysos)

Home Type: House dettached

Size: Square Metres: 240

Insulation Level:  1983 partial 5cm cavity glass wool, 2022 external 10cm rock wool, double glazing 

Heat Loss Calculation: 13.3kw @ Amb. Temp, of: -7C

Type of Controller: Midea wired controller using weather compensation

System Type: Radiators 

Total Output of Heat Emitters: 42kw nominal value at 70/60/20

Buffer Tank or Low Loss Header: NO

Secondary Pumps: 0

Solar PV System: YES

Power Diverter: NO

Battery System: YES

Manufacturer: Daikin 

Model: EDLA04E2V3 (4Kw)

Type: ASHP

Arrangement: Mono

Area of Country: East Anglia

Home Type: House - detached

Size: Square Metres: 150

Insulation Level: 8/10

Heat Loss Calculation: kW @ Amb. Temp, of: 4.1kW at -3C

Type of Controller: Pure LWT control

Type of Control: Weather compensating

System Type: Radiators upstairs and UFH downstairs

Total Output of Heat Emitters: n/a

Buffer Tank or Low Loss Header: No 

Secondary Pumps: 0

Solar PV System: 4.5Kwp

Power Diverter: No

Battery System: 19.5 Kwh

Installed 1st of August 2025, COP for Jan-26, Heating only: 3.53

@georgea Sounds like you have a good low-cost-to-run efficient system there. The absence of an LLH and secondary pump has to be good too! Hope it all continues to provide the comfort you require. Regards, Toodles.

Forum Handel @jancold

Manufacturer: Daikin

Model: EDLA06E2V3

Type: ASHP

Arrangement: Monobloc

Region: SWest coastal

Home type: Semi detached

Size: 72sqm approx 

Insulation level: 1926 cavity filled; good loft insulation; Double glazed windows; suspended floor, uninsulated

Heat loss: 5.8kw @-2C

Type of Controller:  leaving water temp control and weather curve. TRVs Bedrooms only

System type: radiators (all new) 

Total output of emitters: ? 

Buffer tank: Volumiser

Secondary pumps: 

Solar PV: 

Diverter: 

Battery: Solis 8KW Inverter with Fogstar 2* 16KWh