The Arrow Valves isolator for 28mm heat pump pipe work makes installing and servicing the all important strainer a breeze with Harvest Renewables Cornwall. The return flow in 28mm pipe to the heat pump incorporates a removable strainer element to keep the pump as clean as possible. Earlier designs used an isolator either side of the “Y” strainer, but the new Filterball product from Arrow Valves incorporates the cleanable mesh and full isolation in one component. This reduces both the loss of glycol mixture and the need to purge air when recommisioning the system.
At the end of last week, Ofgem issued an update on launch of the new Boiler Upgrade Scheme. Here’s a summary of