It is currently 28 Mar 2024, 12:56
chataigner wrote:We're expecting snow and -5°C in a couple of days, that will be the first snow of the winter here.
9fingers wrote:One of my current projects is a weather compensating heating controller. .....
Bob
9fingers wrote:One of my current projects is a weather compensating heating controller. Having fixed a few issues with my MK1 prototype hardware and software, I finally switched on MK11 this morning but the blooming weather is so mild here (14-15C) the controller (quite correctly) is backing the system to nearly off and so I can't characterise how well it is working.!
Roll on some colder weather for a few days.....
Bob
kirkpoore1 wrote:9fingers wrote:One of my current projects is a weather compensating heating controller. Having fixed a few issues with my MK1 prototype hardware and software, I finally switched on MK11 this morning but the blooming weather is so mild here (14-15C) the controller (quite correctly) is backing the system to nearly off and so I can't characterise how well it is working.!
Roll on some colder weather for a few days.....
Bob
Bob, pardon my questioning of your technical solution, but isn't that called a "thermostat"?
Kirk
RogerS wrote:An interesting approach, Bob.
When I did mine, the only control I had was on/off and so the model learnt over time that if the outside temperature was x degrees and I wanted the inside to be y degrees at such and such a time then it would turn on the boiler 'just in time'.
9fingers wrote:The air temperature is the dominating factor affecting heat loss and is measured where the sun cannot get to.
Bob
9fingers wrote:Andy,
On reflection I'm not sure what you were getting at and consequently if I answered your point?
Bob
9fingers wrote:Our house rarely benefits from solar gain in the heating season.
The density of housing means that our chalet bungalow is overshadowed by a full height house just 3m to the south of our dining room window. Our main living room is west facing so any afternoon sun is too low by the time it is coming from the west. If we do get sun, one of the best heating strategies is to run the aircon in reverse from the free solar electricity* which warms the lounge.
*The panels are on the workshop roof at the bottom of the garden and have a much greater view of the sun all year round.
Bob
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