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not very good at taking life seriously
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Discussion Starter #1
Hi

Wondering if anyone has one of these?

Home - Mixergy

Was the install easy - any issues?

(Anyone in Yorkshire recommend an installer - fingers crossed)

Dave
 

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Contemplating one of these - heat pump for hot water.

Looks interesting...

For about ~£1300 it doesn't sound too expensive?

Any idea what sort of maintenance these units require?
Do you know how does the running costs compere to gas heated system?
 

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They should do about COP 4, so if your leccy is 16p, they heat 1kW for 4p, gas is now 3.5p/kWh, so very similar price, but if you get a Smart tariff with 9p at night, then much cheaper. Should be maintenance free, a bit like a fridge but making the outside cold and water hot.

In summer will easily run off solar PV, just don't switch on at 16.00 - 19.00 on Smart tariff.
 

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Ok, so
1) program it to work during the day - generally helpful if using solar PV,

2) do the calculation, better to heat during the day with leccy at 16p or at night with 9p.

3) can use internal air, so not so troubled by night fall I temperature.

Still better than gas often, oil frequently and a plain immersion almost inevitably.
 

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Remember you need to consider how much your internal air costs to reheat in winter as the system will make your home cooler.
 

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Remember you need to consider how much your internal air costs to reheat in winter as the system will make your home cooler.
Either use external air if only using basic electric heating, or fit an A2A heat pump for general heating, if you have a normal ASHP then you would also have DHW and then can use internal air. Both setups are possible.
 

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Discussion Starter #12
Bit of a BUMP. I'm wondering if anyone here has had one installed and would care to share their thoughts or experiences.

Thanks
Hi.

Yep. It's a fairly straightforward install for an approved fitter (they need to know the particular ins and outs of the plumbing and wiring). We used Harris Heating in Leeds, who prior to our contact had no knowledge , but we're so taken with the tech that they worked with Mixergy to get trained up straight away. We have an Eddi diverter from our solar to mop up the spare sunshine - when it's there!

With regards to the hearing from the top of the tank. Yep - it really works. You can boost a shower's worth of hot water without hearing the full tank. Nice.
 

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ASHD over 18 months -
DHW output
VD DHW TOTAL2,859 MWh

DHW input
VD DHW TOTAL0,617 MWh

COP 4.6.

COP is better in summer than winter but over a year is good. Water at 55c.
 
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