Vaillant has showcased an air-source heat pump that uses R290 as the refrigerant at the ISH tradeshow in Frankfurt, Germany.
The Germany-based heat pump manufacturer said its heat pump is designed for retrofit installations and new buildings.
“Our new aroTHERM plus in air-to-water heat pump that can also be used in retrofit installations as it can reach high flow temperatures,” Vaillant said on its website. “Even systems with existing radiators, which require flow temperatures of up to 55 C, can be operated efficiently.”
It has a heating capacity between 3.5 kW and 12 kW, measures between 765 mm x 1,100 mm x 450 mm and 1,565 mm x 1,100 mm x 450 mm, and weighs 114 kg, 128 kg, or 210 kg, depending on the variant. The coefficient of performance (COP) varies between 3.9 and 4.6 to heat water to 35 C, with external air down to 2 C, and between 5.3 and 5.7 with external air at 10 C.
The pumps can purportedly produce hot water between 22 C and 75 C. The new devices can be installed indoors or outdoors, but the 190-liter water tank must be installed indoors.
“The acquisition costs are also comparatively low, because the aroTHERM plus is one of the cheaper heat pumps on the market,” according to Valliant.
It said savings can be maximized by pairing the heat pump with rooftop PV. It also noted that the noise level ranges from 54 dB(A) to 59 dB(A) during the day and 46 dB(A) in night mode – roughly equivalent to the sound of a refrigerator.
“If the aroTHERM plus is set up three meters away, the sound pressure level is only 29 dB(A), which corresponds to the ticking of a wristwatch,” said Valliant.
*This article was updated on 29/03/2023 to reflect that while the heat pump was showcased at the ISH tradeshow, it was originally launched in April 2020.
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Interesting. To work with homes with current baseboard heat water temp needs near 82c not 75c, and a mid sized home with an current 80k btu boiler would need around 22kwh of heat energy rather than 8. Would work with a small home with subfloor heating.
Nonsense. My house is 5 bed detached 250m2 and built in 1903 with some internal insulation and I run the radiators at 55 deg. My biggest heating day this winter was 200kWh so 9kW. At a CoP of 2.5 that would be a 4kW heat pum0.
We’ve been charging old units with propane for about 40 years here. Forty, not a typo. 1000 times cheaper than R12 and environmentally better. Old units last forever. Can’t say that about the new ones.
Where can I find out more about doing this? Can R22 systems use Propane? I understood that Mercedes-Benz refused to use the new automobile refrigerant due to fire danger.
I have Heatpump 65 degrees Celsius. For 11 years now. Gas out Heatpump in. Rooftop Solar, Inductioncooking. Vaillant is a good Solution for Home Heating. I have a Close in boiler in the Kitchen. 129 Euro. And a 50 liter boiler for the bathroom and Shower. 189 Euro. Smart Inductioncooking. 250 Euro. No Gas saves a lot of money. Use my Own Electricity from the Roof. For 11 years no Energybill. Try it. Thank You.
Not all the people have a house. 🙂 There are a lot of people that stay in apartments.
….with a delivery time of +12 months, Vaillant should focus more on capacity issues, rather than marketing (for now).
Advanced wery nice, i need this, whiting lowely..