Hot water in every patient room.Designed in from day one.

Most existing Philippine hospital stock was never plumbed for patient-room hot water. The mixers, taps, distribution risers and recirculation loops simply don't exist in the building, and adding them is a gut-rebuild — structurally and economically infeasible as a Karnot retrofit. New hospital construction is different: the patient-room plumbing can be designed in from day one at near-zero incremental cost. That's the project shape we target. For existing premium and tertiary hospitals that already have hot-water plumbing throughout the building, a Karnot retrofit makes sense — talk to us about your specific site.

A modelled new-build 150-bed Philippine hospital saves roughly ₱500,000 a year in operating cost vs a traditional MEP spec of diesel laundry boiler + LPG kitchen + electric resistance patient DHW. CAPEX delta vs traditional: ~₱1.5–2M on the MEP package. Premium and tertiary hospitals with larger duty mixes save proportionally more (₱1.5–2.5M/yr opex baseline). Exact numbers depend on bed count, occupancy, laundry / kitchen throughput and patient-room count — send the project brief for your worked case.

Yes. iHEAT R290 delivers hot water at 60°C with COP ~4 — the right temperature for laundry, patient showers and most commercial dishwasher final-rinse. For kitchen sanitation cycles requiring 75–80°C, an iHEAT CO₂ module can be added in parallel with COP 4.0 at the high-temperature step. The system maintains ±1°C tolerance for consistent performance.

iHEAT maintains stored water at 60°C minimum and executes automatic pasteurisation cycles to 70°C as required by HTM 04-01, ASHRAE Guideline 12 and ASHRAE 188. iSTOR phase-change thermal batteries hold pasteurisation temperatures without additional energy input, and iSAVE provides real-time compliance logging — ready for the JCI accreditation audit pre-occupancy.

Hospital installations come with two heat pumps installed — one always running, the other always backing it up. If the running unit needs service, the backup picks up the load automatically with no manual intervention. iSTOR phase-change thermal batteries provide 4+ hours of hot water buffer on top of that, so a power blip or maintenance window never leaves the laundry, kitchen or patient rooms without hot water.

Yes. Eliminating diesel combustion removes Scope 1 emissions and contributes directly to BERDE Energy Efficiency credit points. R290 (GWP 3) refrigerant avoids HFC disclosures — useful for the DOH Green Hospital Programme application and SEC PFRS S2 climate disclosure for listed healthcare groups. iSAVE provides the M&V evidence the certifier asks for.

That 20% figure is not a regulatory cap — it is the daytime self-consumption ceiling that solar gives you without storage. Two routes raise it: (1) the government's April 2026 circular lifted the net metering cap to 1 MW for commercial sites, and (2) if the solar only feeds the site, never exporting to the grid (utilities call this Zero Export), there is no capacity cap at all. The binding constraint is the ability to absorb the daytime generation — which is exactly what Karnot heat pumps plus thermal storage solve, by banking solar as heating, cooling, and hot water for night-time dispatch.

Philippine commercial utility bills include a demand charge based on the highest 15-minute kVA peak in the billing period. Heat pumps charging a Permafrost or iSTOR thermal battery overnight or during off-peak hours dispatch hot water and chilled water during the daytime peak, so the heat-pump compressor can be sized smaller and run at lower nameplate during the peak window. This shaves the 15-minute peak — often the single largest controllable line on a Philippine commercial electricity bill.