could i use my existing UDHWC with proposed heat pump?

[JohnMo]

A heat pump cylinder is around the 32kW rating in the same conditions. So 50% or so bigger.

[JoeBano]

52 minutes ago, JohnMo said:

A heat pump cylinder is around the 32kW rating in the same conditions. So 50% or so bigger.

Would it financially worth changing for me? I’m planning on moving it next year to free some space up in the garage. 

[JamesPa]

1 hour ago, JoeBano said:

Would it financially worth changing for me? I’m planning on moving it next year to free some space up in the garage. 

probably not, just use the immersion or fit a phe & pump as suggested by @JohnMo

[JoeBano]

47 minutes ago, JamesPa said:

probably not, just use the immersion or fit a phe & pump as suggested by @JohnMo

Well I don’t have any issues charging with 10kw ashp. 10c to 48c within a hour, just thinking about the COP. Normally starts at 3000w the drops to 2400w until it’s up to temperatures. I probably won’t recover the cost of a bigger coil cylinder for ten years? 

[sharpener]

 

11 hours ago, JoeBano said:

Would it financially worth changing for me? I’m planning on moving it next year to free some space up in the garage. 

 

9 hours ago, JoeBano said:

Well I don’t have any issues charging with 10kw ashp. 10c to 48c within a hour, just thinking about the COP. Normally starts at 3000w the drops to 2400w until it’s up to temperatures. I probably won’t recover the cost of a bigger coil cylinder for ten years? 

 

I think you have answered your own question pretty definitively! If it ain't broke and all that...

 

[Gordo]

On 11/11/2024 at 08:23, JoeBano said:

Here is the label off unvented cylinder

Coil rating

@ 15l/min/80°C: 19.4kW

intresting. not much more Kw than my own