Solar power payback takes much longer than you think

[Onoff]

43 minutes ago, AliG said:

a material amount of heat is lost in the pipework between the boiler and tank.

 

Is that a huge issue if the losses are within the thermal envelope?

[AliG]

7 minutes ago, Onoff said:

Is that a huge issue if the losses are within the thermal envelope?

 

Sometimes that would be fair as they would offset heating. The plant room just isn't in a position where the heat is useful (garage on one side, cinema room on the other and next to the utility room) None of these areas are ever heated and the cinema room is too hot a lot of the time due to the large amount of heat put put by all the electrical equipment. Also the heating isn't on for half the year.

 

It does bring up an interesting point though on house design. If possible I would try to have the plant room next to/adjoining  a room likely to need more heat than average in your house.  My parents' house has a double height hall with lots of glazing. The plant room door opens onto this room and the UFH manifold will be in the understair cupboard. These should keep the heating requirements down and were deliberate choices from what I learned in my house.

[Radian]

On 29/08/2022 at 10:39, pocster said:

Exactly . 
Why everyone is concerned about ROI on these things baffles me . Suppose it’s 15 yrs or indeed 5 yrs . Does it matter ? . 

OK, just picked up on this... Not everyone necessarily has 5 or 15 years

Maybe it's part of a calculation about how to maximise your enjoyment of the life you've got left.

[Pocster]

26 minutes ago, Radian said:

OK, just picked up on this... Not everyone necessarily has 5 or 15 years

Maybe it's part of a calculation about how to maximise your enjoyment of the life you've got left.

Sure . If you know your time is limited then I’d assume you’d not worry about any ROI time . Only live once . Only 1 planet earth .

[Onoff]

32 minutes ago, Radian said:

Maybe it's part of a calculation about how to maximise your enjoyment of the life you've got left.

 

I just want to leave something where people think, Christ, some thought went into that. 

[Radian]

3 minutes ago, pocster said:

Sure . If you know your time is limited then I’d assume you’d not worry about any ROI time . Only live once . Only 1 planet earth .

Not sure how to accurately convey the actual feelings I have about this. I'm not grumbling, or annoyed about it - but It's not such a simple matter as that.

Anyone at any age can drop dead at any moment but anyone under 35 might be able to expect another 35 years without being too wishful.

Your assumption that you’d not worry about any ROI time knowing your time is limited could do with being upgraded to include the life expectancy. That's all I'm pointing out really.

[Pocster]

2 minutes ago, Radian said:

Not sure how to accurately convey the actual feelings I have about this. I'm not grumbling, or annoyed about it - but It's not such a simple matter as that.

Anyone at any age can drop dead at any moment but anyone under 35 might be able to expect another 35 years without being too wishful.

Your assumption that you’d not worry about any ROI time knowing your time is limited could do with being upgraded to include the life expectancy. That's all I'm pointing out really.

I understand what you’re saying . I didn’t phrase it particularly well . But point taken 👍

[Radian]

Good. Now can we get back to talking about video games with pussies?

Oh wait, that was in another thread...