Heat pumps do not produce the same water temperature as underfloor heating. A boiler can produce up to 80 degrees whilst a heat pump can only produce up to 60.
Underfloor heating operates at low temperatures; therefore it is well suited to being used with a heap pump. Radiators need a higher temperature as there is less area to heat a room (i.e., 1metre long radiator in a room (high temp) as opposed to 80 metres of pipe under the floor in the same room (low temp).
Radiators will always be lukewarm when used with a heat pump because its impossible to get the same heat out of a heat pump as a boiler.
Solo (convector) rads alone retail at € 300 - € 380 per radiator
They give fantastic outputs at high temperatures (boiler). They work at lower temperatures also (heat pump) but don’t give anywhere near the same outputs.
Heating Solutions Ltd Solar Panels – Underfloor Heating – Heat Pumps 29 Suil na Habhann, Mill Rd, Limerick, Ireland Tel: 086 3823062; Fax: 061 346011 Email: info@heating-solutions-ireland.com www.heating-solutions-ireland.com
I would not recommend putting in solo radiators in the entire house if you are putting in a geothermal heat pump. Solo Radiators are more efficient than normal radiators as they can give good outputs at lower water temperatures but you would need a buffer tank to protect the heat pump as there would not be enough heat transfer in the system as there would be with underfloor heating.
They can work however upstairs with underfloor heating downstairs as the underfloor heating will act as your buffer
My solutions would be to put all
● underfloor heating with a heat pump (much cheaper that putting solo’s upstairs)
● all solo convector radiators throughout the house with a boiler.
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