Forum Handle: Pressure

Manufacturer: Daikin 

Model:Daikin Altherma 1 Low Temperature Split With Wall Hung Indoor Units

Type: ASHP 

Arrangement: Split

Area of Country: Sheffield, South Yorkshire

Home Type: Detached house

Size: Square Metres:

Insulation Level: 8? Pretty damn well insulated

Heat Loss Calculation: kW @ Amb. Temp, of: Don't know!

Type of Controller: Thermostats

Type of Control: Room Temperature

System Type: UFH

Total Output of Heat Emitters: 16kW

Buffer Tank or Low Loss Header: Used two have a low less header but "no longer needed"; big water tank 

Secondary Pumps: 1 upstairs

Solar PV System: 5.6KW

Power Diverter: Not connected - Daikin didn't like it

Battery System: Not yet

Forum Handle: GGW

Manufacturer: Grant

Model: Grant 10kW Aerona 3 - 250L HP Cylinder, Warmflow.

Type: ASHP

Arrangement: Monobloc

Area of Country: Northern Ireland

Home Type: Detached House, 2 Storey

Size: Square Metres: 250m2

Insulation Level: 2022 Block Construction EPC 92A. 400mm Roof/Attic, 150mm Fully Bead Filled Cavity - 50mm insulated plasterboard, 150mm poured insulation - 50mm Liquid Screed. Air permeability 2.9 m³/(h.m²) @ 50 Pa

Heat Loss Calculation: 7.2kW @ Amb. Temp, of -1.5Deg

Type of Controller: Thermostats for each room, currently bypassed.

Type of Control: Fixed water Temp 30Deg using Grant controller in main kitchen

System Type: UFH both upstairs and down.

Total Output of Heat Emitters: kW Unknown

Buffer Tank or Low Loss Header: 30L Volumizer only.

Secondary Pumps: None.

Solar PV System: No, hopefully some day

Power Diverter: No.

Battery System: No, Hopefully some day.

Other information: MVHR, 2.4 air changes/hour equivalent.  

Rod

Forum Handle:  Rod

Manufacturer: Mitsubishi

Model: Ecodan 11.2KW

Type: ASHP

Arrangement: Mono

Area of Country: Kent

Home Type: Bungalow

Size: 140 sqm

Insulation Level: 6

Heat Loss Calculation: 

Type of Controller: Wundasmart Thermostats in all rooms

Type of Control: Weather Compensation / Flow Temperature / Room Temperature max

System Type: UFH

Total Output of Heat Emitters: 

Buffer Tank or Low Loss Header: No

Secondary Pumps: 2 pumps at UFH manifolds

Solar PV System: 3KW

Power Diverter: Yes, Eddi to Immersion

Battery System: No

Forum Handle: Denevil

Manufacturer: Grant

Model: 17kw Grant Aerona³  (HPID17R32)

Type: ASHP

Arrangement: Mono, Split, High Temp, Bivalent etc.

Area of Country: Herts

Home Type: Detached 1920's (full refurb)

Size: 220m2 (orig 130m2, extension 90m2)

Insulation Level: 130mm celotex in ceiling, 70mm external celotex on original walls, 150mm mineral wool in new cavity wall

Heat Loss Calculation: kW @ Amb. Temp, of: ?C    (pending)

Type of Controller: Rad thermostat, UFH 2 zones

Type of Control: Adaptive, Weather Compensation, Flow Temperature (max 40 heating, 55 DHW), Room Temperature 19-20.

System Type: extension UFH, existing house Radiators

Total Output of Heat Emitters: kW (pending)

Buffer Tank or Low Loss Header: LLH 

Secondary Pumps: 3

Solar PV System: No

Forum Handle: Thylacine333 

Manufacturer: airwell (aka Midea unit rebranded)

Model: 12kw Welles monobloc R32

Type: ASHP

Arrangement: Mono?

Area of Country: Kent

Home Type: Detached 1960s with 2005 extension

Size: 200m2

Insulation Level: ?

Heat Loss Calculation: kW @ Amb. Temp, of: ?C    (pending)

Type of Controller: salis thermostats x2, 1 for Rads 1 for UFH

Type of Control: weather comp Flow Temperature (max 40 heating, Room Temperature 18-19).

System Type: extension UFH, Radiators

Total Output of Heat Emitters: kW (pending)

Buffer Tank or Low Loss Header: ?

Secondary Pumps: ?

Solar PV System: No

Handle: Salilah1173

Mitsubishi Ecodan 8.5kW

Type: ASHP

Arrangement: No idea - 2 zones, one UFH, other radiator

Area of Country: East Anglia

Home Type: House

Size: Square Metres:no idea - 4 bedrooms, 3 downstairs rooms

Insulation Level: 8? should be good - 20year old

Heat Loss Calculation: kW @ Amb. Temp, of: ?C - no idea

Type of Controller: upstairs thermostat 

Type of Control: Weather Compensation (curve)

System Type: UFH, Radiators

Total Output of Heat Emitters: kW no idea

Buffer Tank or Low Loss Header: BT, LLH or No - huh?

Secondary Pumps: no idea but assume no?

Solar PV System: No

Power Diverter: huh?

Battery System: No

Handle: johnmo

Maxa i-32V5 6kW

Type: ASHP

Arrangement: 2 zones UFH, only one zone can call for heat, one zone in house other zone in garden pod. Both heating and cooling in floor.

Area of Country: NE Scotland 

Home Type: House plus pod

Size: Square Metres: 192m2 plus 17m2

Insulation Level: excellent new build

Heat Loss Calculation: 3.9kW @ Amb. Temp, of: -5C for both buildings

Type of Controller: builtin to ASHP, plus thermostat in house and pod

Type of Control: Weather Compensation (curve) for heating, fixed temp for cooling

System Type: UFH

Total Output of Heat Emitters: matched to heat demand

Buffer Tank or Low Loss Header: BT, LLH or No - no

Secondary Pumps:  no

Solar PV System: yes

Power Diverter: yes

Battery System: No

Forum Handle: dangermousie

Manufacturer:Vaillant

Model: 5kw AroTherm

Type: ASHP

Arrangement: ASHP can go to buffer or HW tank. Buffer can feed downstairs or upstairs but not both. (Is that what arrangement means?)

Area of Country: Berks

Home Type: Detached 2014

Size: 136m2

Insulation Level: 2014 standards I suppose! 

Heat Loss Calculation: kW @ Amb. Temp, of: ?C    (pending)

Type of Controller: Thermostats x2, Upstairs and downstairs

Type of Control: weather comp Flow Temperature

System Type: Radiators (replaced with larger)

Total Output of Heat Emitters: kW (unknown)

Buffer Tank or Low Loss Header: Buffer 200L

Secondary Pumps: No

Solar PV System: coming soon, with batteries

My tale of the tape...

Manufacturer: Mitsubishi

Model: Ecodan 8.5kw

Type: ASHP

Arrangement: Monoblock

Area of Country: Nth Lincolnshire

Home Type: Bungalow (detached, 3-bed)

Size: Square Metres: 145

Insulation Level: ~7

Heat Loss Calculation: 5.51kw @ -2.2c

Type of Controller: Main control panel but also Mitsu Wireless Room Thermostat, TRVs

Type of Control: Weather Compensation (45 @ -3c; 25 @ 19c)

System Type: 11 Radiators

Total Output of Heat Emitters: not known

Buffer Tank or Low Loss Header: No

Secondary Pumps: No

Solar PV System: 3kw (12 x 250w), south facing

Power Diverter: No

Battery System: No

Mitsubishi Ecodan 5kW ASHP - PUHZ-W50VHA2

Ecodan 210L Pre-plumbed Cylinder - EHPT21X-UKCHW

Ecodan FTC5 Controller with Wireless Room Stat and MELCloud WiFi remote monitoring & control

System is on a small bungalow with 7 radiators.

Handle: @dockray

Manufacturer: Mitsubishi

Model: Ecodan 8.5kw

Type: ASHP

Arrangement: Monobloc

Area of Country: Lake District (400m above sea level)

Home Type: Converted industrial building (one level plus mezzanine)

Size: Square Metres: 131m2

Insulation Level: 8

Heat Loss Calculation: Between 4.4kW & 4.9kW at -3.4*

Type of Controller: FTC main control panel, OMNIE wired room thermostats, MELCloud

Type of Control: Weather Compensation (28* flow temp @ -2c; still adjusting/guessing warm end of the curve yet but currently 20* flow temp at 10* outside) to maintain room temp of 19.5*

System Type: UFH 1 zone plus 2 radiators on the mezzanine.

Total Output of Heat Emitters: 5.6kW

Buffer Tank or Low Loss Header: Buffer tank

Secondary Pumps: Pump to get DHW to taps/showers so we don't have to leave them running for ages before they go hot (don’t know what its called!)

Solar PV System: No

Power Diverter: No

Battery System: No

Forum Handle: timatheronwood

Manufacturer: Daikin

Model: 3HT HT_767 High Temperature split (R32)

Type: ASHP

Arrangement: Split, High Temp, Bivalent (at the moment)

Area of Country: South Central

Home Type: House

Size: Square Metres: 305

Insulation Level: Scale of 1 to 10 possibly? Not sure but the ASHP installer and insulation consultant gave us

Heat Loss Calculation: 12.5 kW @ Amb. Temp, of: ?C – in the RHI calculation the estimated output required was 15000kWh for space heating and 4999kWh for water heating.

Type of Controller: Thermostats, TRV's

Type of Control: Adaptive, Weather Compensation, Flow Temperature designed for , Room Temperature etc.

System Type: Radiators

Total Output of Heat Emitters: kW

Buffer Tank or Low Loss Header: Not known                    

Secondary Pumps: Number or No

Solar PV System: 3.8kW

Power Diverter: No

Battery System: No

The EPC says that the house is a C!

I hope that this information helps someone understand our system.