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Showing results for tags 'opentherm'.
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Trying to learn something new. I know - Opentherm is a communication protocol between controlling thermostat and boiler and is a two way thing. So thermostat is say set at 21 and the control mechanism is to drip feed energy into house to keep house temp pretty constant. Also heard it mentioned that not all Opentherm control algorithms are equal, some manufacturers run boiler harder than others. Does Opentherm work in reality? Do you get lots of boiler cycles? Do you have cost savings in gas? Does it work for radiators and UFH? Assume UFH would need to be directly connected and no mixer valve at UFH manifold to get best gains?
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Hi All, We have recently bought a newly built "dolly house" which is equipped with an Ideal Combi ESP1 35 boiler with 2 zones (upstairs and downstairs) managed by Honeywell T6R wireless thermostats. I have been looking into heating controls for friend and got around to the learning a bit about OpenTherm and weather compensation. Then it dawned on me to check my own CH system and I was not entirely surprised to find that although both my boiler and thermostats support OpenTherm it wasn't being used! Clearly the plumbers weren't ready to embrace the new technology. I then learned that my boiler also has the option of weather comp too and this got me thinking. As it would cost very little and take minimal effort to modify my system to use either OpenTherm or weather comp would one have any significant benefits over the other? If it were your house which would you choose? The Honeywell control box is right next to the boiler so running a cable for OpenTherm would be a doddle and I can easily run a cable from the boiler to a north-facing wall for a temperature sensor for weather comp so either way would take no more than 30 minutes work.
