Ok here’s the situation, I am a home owner (not an installer) and I am looking for some clear advice for a heating system I'm looking to have put in over the next 2 weeks.
The house is a semi with 4 bed 1 bath, and 2 en-suites. We are considering a Viessmann 222-F WTC, and I have spoken with Viessmann technical and the Viessmann installer but all have suggested different installations with different pros/cons.
We are looking to have radiators throughout the house, and then UFH in the kitchen, and the 3 bathrooms.
I understand that the UFH circuit needs a lower temp circuit and this could be done in one of two ways, both of which result in a lower temp, boiler controllable circuit for UFH
Solution A] Sub-mounted mixer assembly or
Solution B] 3-Way valve, extension kit (with integral actuator and temp sensor) and pump
However, I have 3 rooms which need UFH, and the boiler can apparently control 1 direct circuit, and up to two mixed.
One tech guy suggested using low loss header and normal zone valve/pump type system for UFH rooms and room stats, really!?
Question
How can I have control over the 3 UFH rooms as they all would share one heating curve? Can I just use Solution B (my preferred) and then zone the mixed, lower temp UFH feed somehow?
Is there any better ways to do this?
Thanks in advance.
The house is a semi with 4 bed 1 bath, and 2 en-suites. We are considering a Viessmann 222-F WTC, and I have spoken with Viessmann technical and the Viessmann installer but all have suggested different installations with different pros/cons.
We are looking to have radiators throughout the house, and then UFH in the kitchen, and the 3 bathrooms.
I understand that the UFH circuit needs a lower temp circuit and this could be done in one of two ways, both of which result in a lower temp, boiler controllable circuit for UFH
Solution A] Sub-mounted mixer assembly or
Solution B] 3-Way valve, extension kit (with integral actuator and temp sensor) and pump
However, I have 3 rooms which need UFH, and the boiler can apparently control 1 direct circuit, and up to two mixed.
One tech guy suggested using low loss header and normal zone valve/pump type system for UFH rooms and room stats, really!?
Question
How can I have control over the 3 UFH rooms as they all would share one heating curve? Can I just use Solution B (my preferred) and then zone the mixed, lower temp UFH feed somehow?
Is there any better ways to do this?
Thanks in advance.