Is weather dependent really worth turning on on a worchester bosch greenstar 4000?
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We were looking at a new boiler and the saving is small if you turn on but it is a saving
3-5% in running cost.
Up to you if you use it.
Add a few other saving strategies and maybe you could save 10% a year.
That's £200.
Bit difficult in our house as it's whacked on high 24/7, even the lemons plants are wilting!
Ha
3-5% in running cost.
Up to you if you use it.
Add a few other saving strategies and maybe you could save 10% a year.
That's £200.
Bit difficult in our house as it's whacked on high 24/7, even the lemons plants are wilting!
Ha
Other saving strategies? Do you not have thermostat set to say 21 degrees so it comes on and off as needed?
Do you imagine that they would include the feature if it did not work?
Well i spoke to a worchester bosch after service person and they told me its not worth having on but that was an off the record remark and i just want to see what other experts think?
Interesting!
I had it on on sunday it was 18 degrees i wanted to get it up to 21 degrees. It modulated at a decent enough heat to 20 degrees then modulated away down and spent over an hour trying to creep up the last degree. I actually think i just switched it off
Right, the idea is that it modulates to the lowest possible flow temperature that will be sufficient to reach the temperature you want.
So maybe taking an hour to do the last one degree is "working as intended". Or, maybe you need to slightly adjust the parameters. I have no idea about your boiler, but I imagine there will be a setting you can adjust that affects its relationship between the external temperature and the water temperature. Turn this up a bit.
That is how our wireless roomstat/programmer works the boiler
It was actually about a week after i had got it installed. I was walking to pick up my son from school and there was a worchester bosch van sitting in a neighbours drive and he was sitting in it. I asked him could i ask him a quick question he said sure. So i asked how i set up the weather dependent. And he said to be honest i would not put it on its more trouble than its worth. I am sure he would not have told the people at the house he was at the same info tho as they could report back to office if he said it to them.
Back in 2012-ish, I replaced a failing Biasi combination boiler with an Intergas 36/30 with weather comp sensor. After much faffing about with the curve settings and observing the differences in behaviour, I concluded it was a bit pointless in my situation. I had largely old (1970s) radiators with slightly inadequate pipework: 22mm to a manifold running off 10mm to each rad downstairs (good) but then a 15mm tee from the 22mm which fed the entire upstairs, from a manifold and 8mm microbore.
You could see how it sensed the temperature outside, and would aim for a lower flow temp based on that. Makes total sense. But my system couldn't really function with a low flow temp due to the pipework, and the fact that the house was rather cold and draughty! I realised that my thermostat/timer settings which would be set up to, say, 15 degrees overnight, 21 degrees at 6:30am, 17 degrees until 4:30pm... well, this was no good if the flow temp was low, as it would also take longer to warm the house up. So I think you need an element of intelligence between the thermostat/timer to work with the outside sensor.
I did eventually get most radiators replaced, and in fairness, the chap didn't run when I enquired about upgrading the upstairs run to 22mm. But I moved house in the end: less hassle.
You could see how it sensed the temperature outside, and would aim for a lower flow temp based on that. Makes total sense. But my system couldn't really function with a low flow temp due to the pipework, and the fact that the house was rather cold and draughty! I realised that my thermostat/timer settings which would be set up to, say, 15 degrees overnight, 21 degrees at 6:30am, 17 degrees until 4:30pm... well, this was no good if the flow temp was low, as it would also take longer to warm the house up. So I think you need an element of intelligence between the thermostat/timer to work with the outside sensor.
I did eventually get most radiators replaced, and in fairness, the chap didn't run when I enquired about upgrading the upstairs run to 22mm. But I moved house in the end: less hassle.
I am not convinced weather dependent is right for me. I have it set to have house to temp for 730am. Its coming on at 5am. I think with off it will come on and at at a hotter temp which yes is a bit harder on the gas but i dont know i just feel at a hotter temp for less time still might save money. I am not penny pinching i just want to run it at optimum leave.
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That's what the weather dependant setting does, saves having to do it manually.
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