tepeo
51Mixed / Improving· ProvisionalUK cleantech company making the Zero Emission Boiler (ZEB), a heat-battery boiler that slots into existing wet central heating systems as a direct replacement for gas and oil boilers.
Why it's on ClimateTicker
Tepeo makes the Zero Emission Boiler (ZEB), a heat-battery that replaces fossil-fuel boilers and uses off-peak, lower-carbon grid electricity to deliver wet central heating — directly addressing UK residential heating, which accounts for roughly 17% of national carbon emissions. The core technology is genuinely mitigation-oriented and fills a real gap for the ~40% of UK homes unsuitable for heat pumps. However, tepeo is an early-stage company with sales still in the hundreds, no SBTi-validated targets, no CDP disclosure, and no independently verified company-level sustainability reporting, so the climate thesis rests almost entirely on product logic rather than demonstrated or audited impact at scale.
Commitments & Certifications
Controversy & Greenwashing Watch
The ZEB's 'zero emission' name refers only to point-of-use combustion; actual lifecycle carbon savings depend on grid intensity and smart-charging behaviour, a nuance tepeo acknowledges in its FAQ but that the product name itself can obscure for less-informed buyers.source ↗
As of late 2023, ZEB sales were 'in the hundreds', meaning aggregate avoided emissions are still negligible at a national scale, creating a gap between the scale of the climate problem tepeo markets against and its current real-world impact.source ↗
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