I want to fit this Drayton Wiser kit (with three additional TRVs) in my parent's 3-bed semi. Combi boiler is in the kitchen, along with a small radiator, and adjoining the kitchen is the through living room and dining room, with a full-size radiator in each. Upstairs there's full-size radiators in the two main bedrooms, and smaller ones in the boxroom and bathroom.
I prefer the Drayton Wiser over the Tado kit, because it's cheaper, the display on the thermostat is more informative and easier to read, the Tado locks several features behind a £3/month subscription and the TRVs are supposedly noisier than the Drayton ones.
Keeping the Smart Thermostat in the Living Room/Dining Room should be sufficient to control the two radiators there, so they won't need TRVs and I'll just need to fit TRVs on the four radiators upstairs and the one in the kitchen.
I understand that I need a bypass valve on one of the radiators. Is there any particular type of bypass valve I need to get, or can I just use the cheapest one I can find, and does it matter which radiator I fit it on?
Should I fit the bypass valve first, before fitting the Wiser hub in the hall in place of the existing digital thermostat and then fitting the TRVs?
I prefer the Drayton Wiser over the Tado kit, because it's cheaper, the display on the thermostat is more informative and easier to read, the Tado locks several features behind a £3/month subscription and the TRVs are supposedly noisier than the Drayton ones.
Keeping the Smart Thermostat in the Living Room/Dining Room should be sufficient to control the two radiators there, so they won't need TRVs and I'll just need to fit TRVs on the four radiators upstairs and the one in the kitchen.
I understand that I need a bypass valve on one of the radiators. Is there any particular type of bypass valve I need to get, or can I just use the cheapest one I can find, and does it matter which radiator I fit it on?
Should I fit the bypass valve first, before fitting the Wiser hub in the hall in place of the existing digital thermostat and then fitting the TRVs?