ᐅ Air source heat pump and heating circulation pump versus domestic hot water heat pump

Hello forum,

I am planning to heat my home with an air source heat pump and currently have two offers from heating and plumbing providers.

Provider A recommends the following:
* Alpha Innotec LWD 70A-HTD air source heat pump with heating circulation pump, 200 liters (53 gallons)

Provider B recommends the following:
* elco AEROTOP SPLIT 07M-RX /180 air source heat pump with Vesttherm VT3150 ECO Plus 310 liters (82 gallons) domestic hot water heat pump

I am building a 140 m² (1,507 sq ft) semi-detached house including a small 50 m² (538 sq ft) granny flat, which is part of the total 140 m². At some point, I plan to install photovoltaics, but the roof is not very large; I think I can get about 5-6 kW out of it. Provider B said that the domestic hot water heat pump is great if I power it with electricity from the photovoltaics.

Right now, I have two questions:

1. Are there any experiences with the elco air source heat pump versus Alpha Innotec? Yes, I have already searched the forum, but it hasn’t really helped me much so far. I am currently leaning more towards the elco because it is cheaper and supposedly has a better COP.

2. Is the domestic hot water heat pump worth it for me? The extra cost would be about 1,400 €. I am a bit overwhelmed by the technical details on this.

Best regards!

A quick correction/addition:

I am currently facing a design question. Next year, I will be building a house according to the 2016 Energy Saving Ordinance and am planning to install solar panels in the long term (still undecided between thermal or photovoltaic).
The house includes a small separate apartment of 50 m² (540 ft²), and the total area is about 190 m² (2,045 ft²).

The entire house has a bathtub, and the separate apartment is designed for one person. Overall, the house is intended to accommodate five people, including children.

Basically, I am wondering if a hot water heat pump really pays off that much or if there are any experiences with it.
Provider A is definitely unbeatable in terms of price...

Hello,
I can't say anything about Elco. I would not install the Alpha Innotec LWD70a because it is not modulating, or as AI describes it, "inverter controlled."
Regards

Hey, thanks in advance for the information.
That would then be more like the LWD"V" model, right?

The colleague who recommended ELCO really criticized the Alpha Innotect heavily... off-the-shelf product, etc.... But of course, he is a salesperson.

Elco doesn’t ring a bell for me. If in doubt, go with the product that offers better service. In my opinion, AI is well established, has good service, and a reasonably dense network of specialized dealers.

However, please install a modulating heat pump, regardless of which supplier is ultimately chosen.