Air/Oil Hybrid ASHP

[Ralph]

Hi all, 

Has anyone had any experience with or opinions on Air/Oil Hybrid ASHP?

We’re looking at possibly pairing a Mitsubishi EcoDan with oil backup (Grant Vortex 15 – 21) or possibly going for Grant Vortex Air/Oil Hybrid boiler.

The plan is for UFH downstairs and a few radiators upstairs. 

As always and thoughts are appreciated.

Ralph
 

[ProDave]

My plumber friend nearly installed the Grant oil / ashp hybrid 2 years ago but I believe the price was eye watering. He ended up just with the Ecodan Air source Heat Pump and I believe it is working okay.

[Jeremy Harris]

I've heard good things about the Daiking hybrids, but they use gas or LPG.  My understanding is that their gas consumption is pretty small, though, as they only use it to boost the hot water temperature by around 10 deg C or so.

[Ralph]

I'm being told the Grant Hybrid would be somewhere around £5k and the Ecodan plus Grant back up would be around £6.5K. Although these are very much ballpark prices.

 

Those Daikins are interesting, I'll try and find what the gas consumption would be.

 

Thanks for the input.

[Nickfromwales]

On 09/07/2018 at 19:55, Ralph said:

I'm being told the Grant Hybrid would be somewhere around £5k and the Ecodan plus Grant back up would be around £6.5K. Although these are very much ballpark prices.

 

Those Daikins are interesting, I'll try and find what the gas consumption would be.

 

Thanks for the input.

They're an interesting solution. Pleased do update when you get any info, thanks. 

[Jeremy Harris]

On 09/07/2018 at 19:55, Ralph said:

Those Daikins are interesting, I'll try and find what the gas consumption would be.

 

@Andrew Bissell - Sunamp has a Daikin hybrid IIRC, and may be able to shed some light on how they perform in the real world.

[Nickfromwales]

Dont we need to say his name 3 times before he appears ?  

[PeterW]

https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.co.uk%2Fulk%2Fitm%2F253704483856

 

Not sure how it works but is RHI compliant ..?

[Nickfromwales]

2 stand alone items thats all. A box of tricks to make it a quick fit is the attractive bit, pre-plumbed / wired it says so a few quid saved on installer complexity too. 

[PeterW]

Sorry meant as in how it works for it to be RHI compliant ..! Assume the controls one use oil for boosting heat and then bulk is done with ASHP and the RHI reflects this. Or RHI is based on space heat only that comes from ASHP and DHW is oil. 

[Jeremy Harris]

I'm pretty sure it's only the heat pump that's RHI compliant and only it's  contribution that is counted towards the payments.

[A_L]

Hybrid heat pumps have/require heat meter(s) as payment is made only on the renewable output

 

https://www.ofgem.gov.uk/system/files/docs/2018/05/essentialguidetometering_may_2018.pdf