ᐅ Full Renovation Heat Pump: Viessmann vs. Samsung vs. Others?
Created on: 9 Feb 2023 15:42
E
ESchuster
Hello everyone,
We have purchased a house near Düsseldorf, which we are completely renovating and extending with an addition.
A brief overview of the basic conditions:
Originally, we had an offer for a ground source heat pump from Weishaupt (total price about 47,000 EUR), which we had already commissioned in August last year. However, Weishaupt never set a drilling date, and then unexpectedly proposed a date in May 2024 — which is far too late for us. They moved this up to the end of January 2024, but that is still too late and would result in additional electric heating costs of about 3,000 EUR. Other drilling companies cannot be found... so the ground source heat pump option is off the table for us.
As a replacement for the ground source heat pump, the heating installer is now offering air source heat pumps. He provided us with two quotes: one from Viessmann (Vitocal 200-S) including a buffer tank for about 30,000 EUR, and one from Samsung (Mono Block HT-QT) also including a buffer tank, for approximately the same price. I no longer want to go with Weishaupt, and the installer doesn’t offer Vaillant (no idea why).
Now to my main question:
Are these two heat pumps basically recommended, or are there clearly better manufacturers to consider? I often read about Lambda/Zewotherm, but I am not sure if the installer would offer those. I am not necessarily looking for the cheapest model, but ideally one with the best price-performance ratio.
Many thanks in advance to the collective intelligence! 🙂
We have purchased a house near Düsseldorf, which we are completely renovating and extending with an addition.
A brief overview of the basic conditions:
- Size of the existing house is about 120sqm (1300 sq ft), the addition about 70sqm (750 sq ft), so approximately 190sqm (2045 sq ft) in total
- Old heating and hot water were oil-based with conventional radiators in the rooms; the old heating system has already been removed
- Underfloor heating will be newly installed; additionally, there will be air conditioning on the upper floor (so the heating system does not need to provide cooling)
- Calculated heating load for the entire building is about 8 kW
- Photovoltaic system will also be installed on the roof, with a maximum output of about 11 kW
- The house will be heavily insulated, but due to the construction type and other factors, it will never achieve the insulation quality of an energy-efficient (passive) house
Originally, we had an offer for a ground source heat pump from Weishaupt (total price about 47,000 EUR), which we had already commissioned in August last year. However, Weishaupt never set a drilling date, and then unexpectedly proposed a date in May 2024 — which is far too late for us. They moved this up to the end of January 2024, but that is still too late and would result in additional electric heating costs of about 3,000 EUR. Other drilling companies cannot be found... so the ground source heat pump option is off the table for us.
As a replacement for the ground source heat pump, the heating installer is now offering air source heat pumps. He provided us with two quotes: one from Viessmann (Vitocal 200-S) including a buffer tank for about 30,000 EUR, and one from Samsung (Mono Block HT-QT) also including a buffer tank, for approximately the same price. I no longer want to go with Weishaupt, and the installer doesn’t offer Vaillant (no idea why).
Now to my main question:
Are these two heat pumps basically recommended, or are there clearly better manufacturers to consider? I often read about Lambda/Zewotherm, but I am not sure if the installer would offer those. I am not necessarily looking for the cheapest model, but ideally one with the best price-performance ratio.
Many thanks in advance to the collective intelligence! 🙂
So, last summer we ordered a Viessmann system, which arrived (as expected) in January. We are renovating as well, but since the oil heating is still running, we are relaxed about the timeline. Despite the interest rate situation, I can’t really imagine that 8 weeks is realistic. We chose Viessmann because the heating installer was the only one who bothered to provide a quote last year ;-) We didn’t have many big requests anyway.