FRV 0-7.5l/min
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FRV Flow Rate Calculator
FRV - Flow rate calculator - easily create a schedule for what flow rates to set on the FRVs to every rad.
Undersized radiators are a bad idea for heat pump systems
When radiators are undersized, the system must work much harder to deliver the required heat, especially in low-temperature systems like heat pumps. This post explains why undersizing drives up flow rates and costs, and how correct radiator sizing combined with FRV valves ensures balanced, efficient performance.
Heat Pump Accessories
Parts that come in handy when installing heat pumps, support feet, preinsulated flexible pipes and much more besides.