Visitors at the Tequs counter beside glass-fronted CO2 heat pumps

Photo: Mariusz Młynarczyk / CloudAir.tech

Illuminated "Heat Pumps" lettering sits above a row of glass-fronted Tequs units lit from inside, on a stand with black walls and a light wooden floor. Staff and visitors talk at the red Tequs counter with a drinks tap, while the back wall repeats the claim of cutting energy use by up to 60 percent.