A
ALEC1
With the vrc470 the controller can be mountd in the boiler fascia with no indoor sensing, or wall mounted, with or without room sensing
We can all quote delighted customers, and annoyed ones, as we choose....It may help if you know that all boilers in Germany have to have an outdoor sensor, so the technology has evolved to not need room sensing...and from experience those that have it on out door sensing only find it works fine without the added information from the indoor sensor.
Alec said:The benefit of these controllers is the multiple parameter that can be varied.
."interact with a parameter"
That sounded like a frost stat, so not normally in use during the day. They used to be common.Russ said:even my forty year old system had an outside thermostat.
I would put TRVS in rooms that are infrequently used and may be bedrooms...but you want to avoid a situation where there is no open circuit for the compensated flow, as it will be running all the time there is demand for heat,
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