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The technical partner for refrigeration, air conditioning and heat pumps
Specialist supplier from Münsterland, Germany, for tradespeople, businesses and private customers — with a wide range, advice from experienced staff and fast delivery across Europe.
- 2008founded
- 18,000+products in our range
- 160+manufacturers and brands
A specialist supplier with an in-depth range — not an anonymous marketplace.
We bring together what technical professionals need: a curated range, personal advice and the ordering speed of a modern online shop. All in one.
18,000+ products — from capillary tube to monobloc heat pump.
Instead of breadth without depth: components, tools, controls and complete systems from a single source. Also special and spare parts that wholesalers often only supply on request.
A photo of the rating plate is enough.
We find spare parts and successor models and help with selection and sizing — by phone, by call-back or by email.
Stock items reach you in 1–3 working days in Germany.
Stock shown for every item, our own warehouse plus a direct line to the manufacturers. If it needs to be faster: express and direct delivery on request.
Order yourself or give us a call — both are fine.
Shop, IDS-Connect, enquiry form or phone. You choose the channel; we give you the same information and the same price.
European in focus, ready to deliver worldwide.
Shop in 7 languages, optimised supply chains in the EU, project handling beyond it — from supermarket chains to ships.
Who buys from us
Businesses from the trades, commerce and industry order from us, as do private customers.
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Refrigeration and air-conditioning contractors
Refrigeration system installers, air-conditioning fitters and service technicians.
Go to refrigeration -
Plumbing and heating businesses
Heating installers and plumbers who fit air conditioners and heat pumps.
Become a heat pump specialist partner -
Manufacturers and plant builders
Companies that build components into their own equipment and systems, in series or for a single project.
B2B and OEM projects -
Catering and food retail
Restaurants, hotels, bakeries, butchers and supermarkets.
Configure a cold room -
Industry and shipping
Production with process cooling, cold stores and shipping companies.
Request a spare part -
Private customers and offices
Anyone looking for an air conditioner for a flat, house, office or practice.
View air conditioners
From tool mail order to full-range supplier.
Founded in 2008 as Kellermann Klima GbR, today an owner-managed GmbH with a range for refrigeration, air conditioning and ventilation.
- 2008
Founding
André (refrigeration system installer) and Hendirk (e-commerce) sell specialist tools in their own online shop.
- 2011
European brands
European manufacturers come on board, along with the first employee and the Trusted Shops certificate.
- 2014
Becoming a GmbH
New inventory management system, 11,500 items, conversion into H + H Kältetechnik GmbH.
- 2019
Full range
Ventilation and air conditioning are added; the shop launches in seven languages.
- 2022
Own brands
Albatros (bathroom fans) and Decarbonize (R290 heat pumps).
- Today
Family business
Run by Angela, Hendirk and Lukas; co-founder André has passed the baton.
Started as two, today a team from 11 nations.
As our range has grown, so has our team, and it is still growing. Today we work in purchasing, sales, technical support, warehouse, shipping and development. We are based in Laer in Münsterland, Germany.
- 2at the start in 2008
- 20+in the team today
- 11nationalities in the team
- 15languages in the team
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Hendirk Homann
ManagementMarketing · Sales · ITCo-founder. Responsible for sales, marketing and the technical platform.
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Angela Melzer
ManagementPurchasing · HR · FinanceResponsible for purchasing, supplier relations and the internal team.
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Lukas Homann
ManagementOnline shop · Data & product · MarketingResponsible for the online shop, product and data management — and, together with Hendirk, for sales.
We believe that modern refrigeration and air-conditioning technology must become more efficient, more digital and more sustainable.
This is not a stance for the company brochure but a matter of what we put in our range. We expand the range specifically where energy efficiency, low GWP and heat pumps make the difference — and advise on the move from F-gases to natural refrigerants.
- R290 · CO₂
Natural refrigerants as the standard path.
R290 monobloc heat pumps from our Decarbonize brand, CO₂ components, propane-compatible tools — we stock what the F-gas Regulation requires before it requires it.
- Efficiency
EC fans, quiet ventilation, heat recovery.
With our own brand Albatros and selected manufacturers, we are consistently expanding our ventilation range towards energy-efficient solutions.
- Digital
IDS-Connect, ERP integration, clean interfaces.
Efficient logistics starts with ordering: with clean interfaces, installers and wholesalers never have to enter anything twice.
- Shipping
Climate-neutral parcel shipping as standard.
Climate-neutral standard shipping, optimised routes, regional direct delivery where it makes sense.
Six promises you can measure us by.
No empty phrases. Concrete services we deliver every day — and can back up if in doubt.
Find the right product quickly
Structured categories, filters by manufacturer, search by EAN and item number.
Availability at a glance
Stock shown for every item — stock items reach you in 1–3 working days in Germany.
Reply usually on the same working day
We answer questions about sizing, refrigerants or spare parts personally and with a concrete recommendation.
Solutions for standard and special cases
From standard compressors to special OEM projects — we prepare individual quotes via the enquiry form.
Order across Europe, delivered regionally
Shop in 7 languages, shipping throughout the EU, direct delivery where it makes sense.
Fair terms — even for small quantities
Tiered prices, customer account with order history, IDS-Connect for purchasing from your own system.
Top ratings on Trusted Shops and Google — award-winning in 2026.
Fast delivery, knowledgeable advice, smooth processing: that is what our customers say. Plus the Life & Living Award from DISQ and ntv.
Let's talk about your next project.
Standard component, sizing a refrigeration system or a special OEM project: tell us what you need. We give you a concrete answer, usually on the same working day.