RotoSpa, described as the UK's only hot tub manufacturer, builds its products at a local facility using a dual-shot rotational moulding process and 100 per cent recyclable, high-grade polyethylene.
The company says the resulting shell is naturally insulated and energy-efficient, designed to perform in cold weather as well as warm.
The firm has paired this with its EcoCube Heat Pump, a system it says both heats and cools water - maintaining warmth for winter use and cooling water for cold-plunge recovery in summer.
RotoSpa say the seasonal nature of hot tub sales has long been accepted rather than challenged across the industry, creating quiet trading periods for retailers and complicating year-round bookings for commercial operators such as holiday parks.
Karl Rowntree, director at RotoSpa, which has a showroom on Boldmere Road in Sutton Coldfield, said: "We've never accepted that a hot tub should sit idle for half the year.
"Our tubs perform in January just as well as July, and the EcoCube Heat Pump means customers can set their temperature and enjoy a warm soak or a cold plunge, whatever the season. It's about making each tub genuinely useful all year round."
The company is promoting the approach under the campaign strapline 'Hot. Cold. One RotoSpa'.
RotoSpa has manufactured hot tubs in the UK for more than two decades, supplying both domestic customers and commercial operators including holiday parks.
The company says keeping manufacturing on British soil supports tighter quality control, a lower carbon footprint and skilled local jobs.
