Upgrading Worcester Bosch 440 CDi ERP to weather compensation

[SteveV]

Hello everyone,

I have a Worcester Bosch Greenstar 440CDI ERP installed in my cellar with EPH room thermostats, for 2 zones of heating in my house. These controls are a bit basic as they only allow one temperature and basic on/off times.

I have seen the FW100 weather compensating controller and wonder if this will save me anything on my gas bill.

So my questions are:

1. Is the FW100 any good?
2. Can it be installed into the boiler fascia when the boiler is in the cellar, rather than the main living space?
3. Are any other sensors required or recommended in the house?
4. Can I just remove the wiring from the EPH programmer to the boiler or is there other reconfiguration needed?

Cheers,

Steve

 

[gmartine]

1. Is the FW100 any good?
Don't know but it should still help you make some savings, compared to smart controllers like Nest, Hive and Tado it does look dated.

2. Can it be installed into the boiler fascia when the boiler is in the cellar, rather than the main living space?
Looks like it but double check with WB.

3. Are any other sensors required or recommended in the house?
There will be a sensor to be wired in and attached to the north face of your property.

4. Can I just remove the wiring from the EPH programmer to the boiler or is there other reconfiguration needed?
If it slots into the boiler facia it will be plug n play if not you'll have to wire it up like your existing controller.