Hi,
I'm yet another newbie, looking to automate my central heating system. I think I would like to use some of the components of the HouseHeat system (FS20) - but possibly in a different way to others.
My starting point is that I don't have TRVs of any description on my rads, and I have a simple manual timer on my boiler, with no room thermostat at all.
So, phase one would be to replace the manual timer with something that can be wirelessly controlled, prior to doing any re-plumbing of rad valves, etc.
I have read about the FHZ1300, and the boiler control FHT8W units and, since I am in IT, I would be comfortable with putting FHEM together, running on a Sheevaplug or NSLU2 to do the controlling.
What I'm unclear about is: can I directly control an FHT8W from an FHZ1300? I know most people start by adding a number of room thermostats (FHT 80B) and associated TRV controllers, and linking them to the boiler control. In this case I gather that the boiler control receives messages directly from the thermostat and decides if boiler is required. However, in my case, I would be looking to initially simply use timing based logic (replacing what I have with my manual clock), and then proceeding to temperature sensing/zoning, and TRVs in later phases. So, I would be looking to use the boiler control in a dumb mode of just responding to "On" and "Off" messages directly from the FHZ1300.
Can anyone tell me is this a runner, or have I completely misunderstood what's possible with the FS20 based system?
Many thanks,
John.
I'm yet another newbie, looking to automate my central heating system. I think I would like to use some of the components of the HouseHeat system (FS20) - but possibly in a different way to others.
My starting point is that I don't have TRVs of any description on my rads, and I have a simple manual timer on my boiler, with no room thermostat at all.
So, phase one would be to replace the manual timer with something that can be wirelessly controlled, prior to doing any re-plumbing of rad valves, etc.
I have read about the FHZ1300, and the boiler control FHT8W units and, since I am in IT, I would be comfortable with putting FHEM together, running on a Sheevaplug or NSLU2 to do the controlling.
What I'm unclear about is: can I directly control an FHT8W from an FHZ1300? I know most people start by adding a number of room thermostats (FHT 80B) and associated TRV controllers, and linking them to the boiler control. In this case I gather that the boiler control receives messages directly from the thermostat and decides if boiler is required. However, in my case, I would be looking to initially simply use timing based logic (replacing what I have with my manual clock), and then proceeding to temperature sensing/zoning, and TRVs in later phases. So, I would be looking to use the boiler control in a dumb mode of just responding to "On" and "Off" messages directly from the FHZ1300.
Can anyone tell me is this a runner, or have I completely misunderstood what's possible with the FS20 based system?
Many thanks,
John.
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