World News

Industry news and insights from Europe and around the World

UK News

Latest news and developments in the United Kingdom


Keep up-to-date with the latest new products and technology


General articles, applications and industry analysis

Honeywell to offer car AC drop-in refrigerant

USA: Honeywell has announced it will be selling Solstice 456A, a new lower GWP drop-in replacement for R134a in car air conditioning systems. 

While Honeywell makes no mention of its chemical components, other than it being “HFO-based”, the gas is assumed to be R456A, the refrigerant blend developed and previously announced by rival company Koura.

Koura has so far failed to respond to requests for clarification from the Cooling Post. Honeywell said it did not publicly disclose information about licensing or sales agreements.

Honeywell, which holds patents on R1234yf, the refrigerant adopted for use in all new vehicles, says that Solstice 456A will be commercially available to the European automotive aftermarket later this year.

Following its successful passage through the ASHRAE classification process, R456A was unveiled by Koura as its new lower GWP refrigerant alternative to R134a in existing automotive air conditioning systems in the UK and Europe in January.

R456A is a non-flammable blend of R32 (6%), R134a (45%) and R1234ze(E) (49%). It has a GWP of 626. Trials are said to have proven both its compatibility and performance match with R134a in existing automotive air conditioning systems.

In its press release, Honeywell says that Solstice 456A “provides an easy-to-use, economical, drop-in service solution for vehicles manufactured before 2017”. 

Announcing its forthcoming availability, Honeywell’s automotive refrigerants vice president and general manager, said: “With more than 200 million cars on the roads in Europe still using R134A, there is a need in the market for a sustainable and economical product to support auto repair shops servicing these vehicles.” 

Related stories:

Koura’s new lower GWP option for existing R134a MAC systems10 January 2022
USA: Refrigerant manufacturer Koura has unveiled its new lower GWP refrigerant alternative to R134a in existing automotive air conditioning systems in the UK and Europe. Read more…

Latest News

20th February 2024

F-gas regulation published in Official Journal

EUROPE: The new F-gas regulation has now been published in the EU’s Official Journal, making it legally binding and entering into force in 20 days.
20th February 2024

Carrier Germany increases heat pump training

GERMANY: Carrier Germany is offering new hydraulics training courses  at its training centre on the IKKE campus in Duisburg to support the growing demand for heat pump expertise. 
20th February 2024

Oceanair acquired by builders’ merchant MKM

UK: Air conditioning and heat pump distributor Oceanair UK has been acquired by MKM, the independent builders’ merchant.
20th February 2024

Carrier to build factory and R&D facility in Saudi Arabia

SAUDI ARABIA: Carrier is to build an advanced manufacturing and R&D facility in Saudi Arabia in a partnership with Alat, a new Riyadh-based public investment fund company.
19th February 2024

BDN offers high level monitoring

IRELAND: The first installation of Bitzer’s Digital Network (BDN) in Ireland is providing high-level monitoring, system diagnostics and optimisation for an award-winning deli food specialist.
19th February 2024

Manchester receives heat pump training boost

UK: Daikin UK in partnership with the Green Skills Academy is to deliver the first heat pump training programme for college tutors and staff at nine Greater Manchester colleges.