Cut gas consumption across
every building you operate
Whether you run a council estate, a hospital trust, a university campus or a large housing portfolio, HeatFlow turns your metering data into a measurable, attributable, defensible gas reduction programme - quantified in kWh, £ and tonnes of CO₂.
The strategy is simple. The data has to be relentless.
Gas reduction in large buildings doesn't fail because the engineering is hard - it fails because nobody can measure it consistently across the estate. HeatFlow fixes the measurement problem so the engineering can finally pay back.
Built for Estate-Scale Operators
Council estates, NHS trusts, MoD bases, university campuses, hotel chains and large housing portfolios - HeatFlow scales from one plant room to thousands of meters across hundreds of sites.
Measure Reductions That Hold Up
Every percentage point of gas reduction is backed by metered data, BEIS-aligned carbon factors and a defensible baseline. No more 'we think we saved 12%' on a board slide.
Pinpoint the Worst-Performing Buildings
Normalised kWh/m² and kWh/dwelling benchmarks across your estate let you focus capex on the 20% of buildings causing 80% of the gas bill.
Attribute Savings to Specific Interventions
Mark exactly when a control retrofit, boiler swap, pipe insulation, smart TRV rollout or behavioural campaign happened. HeatFlow shows you the precise before/after impact for each measure, on each building.
Surface Quick Wins Continuously
Anti-cycling tuning, weather compensation, DHW setpoint optimisation, leak detection - most large buildings have 5–15% gas savings hidden in operational tuning alone.
Board & Regulator Reporting
One platform produces the right report for each audience: granular operational data for engineers, headline carbon and £ saved for the board, BEIS-format evidence for regulators.
A typical 12-month gas-reduction journey
Months 0–1 · Baseline & visibility
Historical gas data is loaded, smart meters are commissioned where missing, and HeatFlow establishes a normalised baseline per building. The estate league table appears for the first time - usually with a few uncomfortable surprises.
Months 1–3 · Quick wins
Fault elimination, anti-cycling tuning, weather compensation, DHW setpoint optimisation and leak fixing typically deliver the first 5–10% gas reduction with no capex.
Months 3–9 · Targeted retrofit
The worst-performing buildings get prioritised for controls retrofits, balancing, insulation or boiler optimisation. HeatFlow measures each intervention's contribution individually.
Months 9–12 · Verified savings & next-phase business case
By month 12, most estates report 10–22% verified gas reduction, full BEIS-aligned carbon savings, and a fully-evidenced business case for the next funding round (PSDS, SHDF, internal capex).
Frequently Asked Questions
How can large buildings reduce gas consumption without major capex?
Most large gas-fired buildings have 5–15% reductions available through operational tuning alone: anti-cycling, weather compensation, DHW setpoint optimisation, balancing, schedule alignment with occupancy and leak elimination. HeatFlow surfaces these continuously and quantifies each opportunity in kWh and £.
What gas reduction is typical after a HeatFlow rollout?
Across communal heat networks and large buildings we typically see a 10–22% reduction in gas consumption within the first 12 months - combining operational optimisation, fault elimination, measurement accuracy and behavioural change. Capex retrofits then unlock further structural reductions.
How do you measure savings without disrupting operations?
HeatFlow uses your existing or newly-installed smart meters and temperature sensors. Installation is non-intrusive (wireless wM-Bus / LoRa / NB-IoT) and the platform begins establishing a baseline immediately, with savings reporting available the day your intervention goes live.
Will this work alongside our existing BMS?
Yes. HeatFlow does not replace your BMS - it sits above it as the metering, M&V and reporting layer your BMS was never designed to provide.
Is this suitable for the Public Sector Decarbonisation Scheme (PSDS) or SHDF?
Yes. HeatFlow is purpose-built for PSDS and SHDF measurement & verification reporting, providing baselines, post-intervention tracking and BEIS-aligned carbon savings evidence in formats funding bodies expect.
Can energy-saving device manufacturers white-label HeatFlow?
Yes. If you make controls retrofits, smart TRVs, boiler optimisation kit, heat-pump controls or any other device that reduces gas consumption, HeatFlow provides the customer-facing measurement and reporting frontend you may not have built yourselves.