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Showing results for tags 'weather comp'.
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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. -
Trying to get my head around what I need to install UFH and four towel radiators and three small aluminium panel radiators. Been in touch with Wunda, asked about Wilo pumps and they said no longer supply, asked about a lower temp range blending valve and they said 35 is the min. So I started looking around at other suppliers. Came across Emmetti, and they do a mixed rail manifold M3V that has a hot side for rads and a cool side for UFH. Or is this just overcomplicating matters. Has anyone used their weather comp controls? They have a modulating blending valve connected to their weather comp, as I am feeding all the heating from a buffer tank, I presume I cannot weather comp the boiler, as it only gets a call for heat from the buffer stat, or the DHW stat in the main tank. My UFH is sitting in 55mm Cemfloor screed, sat on top of a concrete beam and block floor, with 300mm sprayed insulation on the underside, so it will be slow to respond. I was originally looking at Heatmiser Neo stats and multiple zones, but now thinking that due to the slow response, that the whole ground floor, circa 100m2 will eventually even out temp wise, and may be better controlled via weather comp and the modulating mixer valve. Has anyone any real life experience of this set up? It's a big learning curve for us, our project has gone from an estimate of six months to over 18 months in now, and we are keen to get the floor screeds in and heating going before winter. thanks Andy
