
Development and distribution of the floor-standing heat pump as a 1:1 replacement for gas floor-standing heaters in the existing building stock

HeatPump23 GmbH
Heilbronn (Headquarters)New on Amplifa
About HeatPump23
HeatPump23 GmbH, based in Heilbronn, develops and distributes a floor-standing heat pump for apartments and houses without a heating cellar. The system consists of a monoblock outdoor unit (air-to-water heat pump without refrigerant lines, operated with 230 V household electricity) as well as a compact indoor unit with an integrated 86-litre domestic hot water tank and WLAN connectivity. The outdoor unit is available with aluminium claddings in various RAL colours for facade integration. The product is designed as a 1:1 replacement for gas floor-standing heaters in existing buildings up to approx. 120 m² and is installed by regional partner heating installation companies; according to the manufacturer, installation is possible in about two days. In addition, the company offers a smartphone app for heating control and consumption data as well as a remote maintenance portal for installers. The company was funded, among others, by the Stuttgart Climate Innovation Fund.
- Site
- Heilbronn
- Processes
- Development and manufacturing/distribution of floor-standing heat pumps (air-to-water heat pump,, Assembly/installation of the floor-standing heat pump (1:1 replacement of the gas floor-standing, Installation of the floor-standing heat pump by regional partner heating installation companies, Remote maintenance portal for installers, Smartphone app for heating control and consumption data, Cooperation with installers for installation and service
- Materials
- Aluminium claddings (outer casing in various RAL colours), Aluminium claddings
- Industries
- Heat pumps / Heating technology, Housing sector / Existing buildings, Energy transition / Building energy
- 01
Product development and engineering in Heilbronn
- 02
Manufacturing of the indoor unit with domestic hot water tank and monoblock
- 03
Distribution via installers
- 04
Installation by regional partner heating installation companies
- 05
Digital services: app and remote maintenance portal
Materials & Components
Aluminium claddings
Outer casings of the monoblock outdoor unit in various RAL colours for integration into the building facade.
Locations
Heilbronn
DEHeadquarters, development and sales
Products

Inside the production

Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Development and manufacturing/distribution of floor-standing heat pumps (air-to-water heat pump,Engineering | – | – | – | – | Aluminium (outer casing/claddings) |
| Assembly/installation of the floor-standing heat pump (1:1 replacement of the gas floor-standingAssembly | – | – | – | – | – |
Additional services
History
- 2025
Market launch of the floor-standing heat pump (Stuttgarter Zeitung coverage, September 2025)
- 2025
Media coverage by SWR1 (June 2025)
- 2026
Coverage by Handelsblatt, Heilbronner Stimme, ARD/SWR, Der Spiegel
Funded, among others, by the Stuttgart Climate Innovation Fund