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Gas boiler HEATMASTER 35 EVO 2
combicommercialfor commercial buildings

Gas boiler - HEATMASTER 35 EVO 2 - ACV - combi / commercial / for commercial buildings
Gas boiler - HEATMASTER 35 EVO 2 - ACV - combi / commercial / for commercial buildings
Gas boiler - HEATMASTER 35 EVO 2 - ACV - combi / commercial / for commercial buildings - image - 2
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Characteristics

Power source
gas
Type
combi
Sector
commercial, for commercial buildings
Interior/exterior use
indoor
Other characteristics
condensing, with integrated storage tank
Certifications
class A
Power

Min.: 6.8 W
(23.2 BTU/h)

Max.: 34.1 W
(116.35 BTU/h)

Length

600 mm
(24 in)

Width

708 mm
(28 in)

Height

1,780 mm
(70 in)

Weight

177 kg
(390.2 lb)

Water heater capacity

196 l
(51.8 gal)

Description

Overview
  • Commercial floor-standing condensing combi boiler designed to combine domestic combi boiler technology with high peak domestic hot water (DHW) capacity.
  • Tank‑in‑Tank stainless steel DHW production for fast recovery and improved corrosion resistance.
  • Operable on Natural Gas and LPG; supplied with LPG conversion kit for on-site changeover.
  • 5‑Year warranty on key components.


Key features
  • Space- and installation‑efficient solution — integrates boiler and sanitary hot water cylinder in a single unit.
  • Full condensing operation for both space heating and DHW to maximise efficiency.
  • ErP Class A; NOx < 40 mg/kWh (weighted NOx 29.5 mg/kWh) and seasonal heating efficiency suitable for regulatory compliance.
  • ACVMax control with graphic display; internal time clock with up to 6 programmes to optimise fuel usage.
  • Multiple control interfaces: On/Off, 0–10 V modulation, OpenTherm compatibility and Modbus/BMS communication.
  • Corrosion‑resistant stainless steel heat exchanger and Tank‑in‑Tank cylinder to reduce maintenance and extend service life.
  • Integrated legionella protection strategy (storage temperature >60°C) and automatic safety features.
  • BIM and CAD objects available to support building design and installation planning.


Schematics / Internal components
  • Concentric flue gas / air inlet assembly.
  • Flue gas exhaust tube and combustion chamber.
  • Stainless steel heat exchanger.
  • Stainless steel Tank‑in‑Tank DHW cylinder.
  • Primary circuit separation disc and indirect pre‑heater.
  • High‑efficiency circulator pump and insulation.
  • Condensate recovery tray and NTC5 flue gas sensor.
  • NTC1 (CH supply) and NTC2 (CH return) sensors.
  • Electrical panel with spare fuses and ACVMax Touch control panel.
  • On/Off switch, DHW dry well with temperature sensor, automatic air vent, gas valve and piping.
  • Modulating premix air/gas burner with fan and air inlet.


Applications
  • Engineered for commercial installations with high DHW demand — hotels, hospitals, multi‑dwelling buildings and other critical hot water premises.


Documentation & digital assets
  • Technical brochure, installation and maintenance manuals, and gas conversion procedure available. BIM and CAD files provided for the HeatMaster 25–45 Evo2 range.


Technical specifications
  • Model: HeatMaster 35 Evo 2
  • GTIN / EAN: 5400891542538
  • Total capacity: 196 L
  • Primary capacity: 100 L
  • DHW capacity: 96 L
  • Max flue pressure drop: 130 Pa
  • Max concentric flue length: 20 m
  • Flue connection: Ø 80/125 mm
  • Heating connection: 1" F
  • DHW connection: 1" M
  • Gas connection: 3/4" M
  • Safety valve connection: 1/2" M
  • Max operating temperature: 87 °C
  • Water pressure drop (Δt = 20°C): 6 mbar
  • Max service pressure (primary): 3 bar
  • Max service pressure (DHW): 8.6 bar
  • Height when tilted: 1880 mm
  • Weight (empty): 177 kg
  • Pre‑heating time 10→80°C (boiler): 26 min
  • Reheat time 40→90°C: 28 min
  • Heating time 10→90°C: 33 min
  • Input max (HCV): 38.7 kW
  • Input max (LCV): 35 kW
  • Combustion efficiency: 98.2 %
  • Efficiency at 30% load (EN15502‑1): 109.0 %
  • Efficiency at 100% load (50/30°C): 103.9 %
  • Output power max (80/60°C): 34.1 kW
  • Output power min (80/60°C): 6.8 kW
  • DHW peak flow 40°C: 408 L/10'
  • DHW 1st hour 40°C: 1328 L/60'
  • DHW continuous 40°C: 1104 L/h
  • Voltage / Frequency: 230 V / 50 Hz
  • Electrical consumption: 111 W (0.8 A)
  • Protection class: IP20
  • Declared load profile: XXL
  • Space heating energy efficiency class: A (seasonal 35°C: 93 %)
  • Water heating energy efficiency class: A (ηwh: 93.2 %)
  • Indoor sound power level LWA: 60 dB

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.