
Hot water tanks, heating controls and calibrated heat and water meters for heating technology
Brummerhoop GmbH
Bremen (28329) · DENew on Amplifa
About Brummerhoop
Brummerhoop GmbH is a medium-sized, owner-managed company in its third generation, headquartered in Bremen. Under its own brand brummerhoop®, it offers a product range consisting of three product lines: highly insulated stainless steel drinking water tanks from 120 to 500 litres for hygienic hot water generation, universal heating controls and accessories, as well as calibrated heat meters, water meters and energy calculators with radio interfaces (wireless M-Bus, OMS). The control technology was previously sold under the manufacturer names AEG, Kromschröder and Elster. Materials used include stainless steel 1.4521 (AISI 444) for drinking water tanks, brass and spheroidal cast iron for flow sensors, and Neopor for the thermal insulation of heat pump tanks. Customers include the plumbing and HVAC trade, commercial customers, local and district heating, and operators of heat pump and solar systems; the DACH region (Germany, Austria, Switzerland) is served. The company offers technical consulting, support during installation and commissioning, multilingual product documentation, and old appliance recycling with a free return label.
- Site
- Bremen
- Processes
- Buying advice and product consulting, Technical clarification / support during installation and commissioning, Product documentation (Docuthek), Old appliance recycling with free return label, B2B purchasing terms for commercial and trade customers
- Materials
- Titanium-niob stabilized stainless steel, Brass, Spheroidal cast iron, Neopor (thermal insulation), Titanium-niob stabilized stainless steel (AISI 444), Neopor (plastic foam)
- Certificates
- WEEE registration, EN 1434 (heat meter accuracy), MID approval, PTB K 7.2 (cooling meters), FairCommerce membership
- Industries
- Heating technology / Plumbing and HVAC trade, Metering technology / Heat and water consumption metering, Heat pumps and heating controls, Local and district heating, Solar systems
- 01
Product development (control and metering technology)
- 02
Procurement and manufacturing of products
- 03
Sales via own online shop (private, commercial and trade customers)
- 04
Technical consulting and support during installation/commissioning
- 05
Documentation (Docuthek)
- 06
Old appliance recycling with return label
Materials and Processes
Titanium-niob stabilized stainless steel (AISI 444)
Highly insulated drinking water tanks (120–500 litres) for hygienic hot water generation.
Brass
Material of the BR473 ultrasonic flow sensor for heat metering.
Spheroidal cast iron
Listed as a material in the BR473 flow sensor datasheet.
Neopor (plastic foam)
Thermal insulation of the WiPower heat pump hot water tank.
Locations
Bremen
DEHeadquarters, sales and shop
Components and Products


Inside the production

Industries
Additional services
Quality and Approvals
The heat meter calculators meet the metering accuracy requirements of EN 1434 and are approved according to MID as well as PTB K 7.2 (cooling meters); calibrated metering technology (including 2026 verification).
| Evidence | Bremen |
|---|---|
| EN 1434 (heat meter accuracy) | |
| MID approval | |
| PTB K 7.2 (cooling meters) | |
| FairCommerce membership |
History
- 1983
Conversion of the sole proprietorship into a GmbH; 100% family-owned ever since
- 2018
Member of the FairCommerce initiative since 20.04.2018