HeatMaster 25 C Evo

Gas fired condensing combined boiler and high output water heater

Also available in propane.
TANK-IN-TANK TECHNOLOGY

label_energy_GAS
Boilers
DHW Production
Standard
Concentric
Floor installation

# GTIN : 5400891528228

# P/N : 052822

Floor standing boiler with large primary water volume, adaptable to all types of existing installation
Responds to high peak demand and high continuous flow
Exceptional domestic hot water flow: >35L/min
NOx rating (EN483) 22.8/kWh
Seasonal Efficiency 96.8%
Stainless steel Tank-in-Tank DHW cylinder with proven long life reliability
Anti Legionellae: hot water stored at consistently high temperature
Stainless steel self-cleaning heat exchanger
High efficiency boiler charging pump
Concentric balanced flue or conventional flue options.
Can also be used as a stand alone water heater.

Schematic — Concentric flue gas/air inlet box

Flue gas exhaust tube

Combustion chamber

Stainless steel heat exchanger

Stainless steel “Tank-in-Tank” hot water production tank

DHW inlet tube

Insulation

Condensate recovery dish + NTC5 sensor (flue gas)

Drain valve

High efficiency circulator pump

NTC2 sensor (CH return)

Electrical panel (with spare fuses at the back)

ACVMax Touch Control panel

On-Off switch

DHW tank dry well (Dip tube with temperature sensor)

Automatic air vent

Gas pipe

NTC1 sensor (CH supply)

Gas valve

DHW safety valve / (T&P relief valve - UK only)

Modulating air/gas premix burner with fan

Air inlet

Constructive characteristics
		HeatMaster 25 C Evo
Capacity (total)	L	200	L
Capacity (primary)	L	120	L
Capacity (domestic hot water)	L	80	L
Capacity expansion tank(s)	L	-	L
Chimney: Max pressure drop in flue pipe	Pa	130	Pa
Chimney: max length of concentric flue pipe	m	60	m
Chimney connection	Ømm	80/125	Ømm
Connection - heating	Ø"	1 F	Ø"
Connection - DHW	Ø"	1 M	Ø"
Connection gas	Ø"	3/4 M	Ø"
Connection - safety valve	Ø"	1/2 M	Ø"
Max operating temperature	°C	87	°C
Water pressure drop boiler at Δt = 20°C	mbar	3	mbar
Max service pressure heating (primary)	bar	3	bar
Max service pressure (DHW)	bar	8,6	bar
Height when tilted	mm	1872	mm
Weight (empty)	kg	174	kg
Heating characteristics
		HeatMaster 25 C Evo
Pre-heating time from 10 to 80°C (Heat source: boiler)	min	27	min
Heating time from 10 to 90°C	min	40	min
Combustion
		HeatMaster 25 C Evo
Input max (heating) HCV	kW	27,8	kW
Input max (heating) LCV	kW	25,0	kW
Combustion efficiency	%	97,5	%
Efficiency at 30% load (EN15502-1)	%	109,0	%
Efficiency at 100% load (50/30°C)	%	103,9	%
Efficiency (max output) 80/60°C	%	98	%
Efficiency (min output) 80/60°C	%	98	%
Efficiency DHW mode ΔT 30K	%	99,2	%
CO emissions max output	ppm	27	ppm
CO emissions min output	ppm	6	ppm
Mass rate of combustion products (gas)	kg/h	42	kg/h
NOx weighted (GCV) (EN15502)	mg/kWh	26,3	mg/kWh
NOx class (EN15502)		6
Nominal power DHW	kW	25	kW
Output power max (80/60°C)	kW	24,3	kW
Output power min (80/60°C)	kW	4,9	kW
Gas flow rate (min output)	m³/h	0,5	m³/h
Domestic hot water performance
		HeatMaster 25 C Evo
Peak flow at 40°C	L/10’	233,5	L/10’
Peak flow 1st hour at 40°C	L/60’	748	L/60’
Continuous flow at 40°C	L/h	617	L/h
Peak flow at 60°C	L/10’	145	L/10’
Peak flow 1st hour at 60°C	L/60’	478	L/60’
Continuous flow at 60°C	L/h	400	L/h
Electrical Characteristics
		HeatMaster 25 C Evo
Voltage	V	230	V
Frequency	Hz	50	Hz
Protection IP		20
Electrical consumption	W	95	W
Electrical power requirements	A	0,8	A
Eco Design Fields
		HeatMaster 25 C Evo
Space heating energy efficiency class		A
Seasonal space heating efficiency (35°C)	%	93	%
Declared load profile		XXL
Water heating energy efficiency class		B
Water heating energy efficiency [ηwh] (EU 814/2013 Art 2 (15) Ann.IV-3)	%	74	%
Sound power level indoors LWA	dB	60	dB
Energy Label
Product Fiche

Technical brochure
ACVMax Touch - Installer's handboek for EVO appliances (2022 ->)	8.83MB – en
Addendum conversion to propane HM 25 C Evo	1.59MB
Evo Range Gas Conversion Procedure	2.28MB – fr en pl it de es ru
HeatMaster 25 C Evo : Installation, operation and maintenance instructions	10.79MB – en
HeatMaster 25 C Evo : Инструкции по монтажу, эксплуатации и техническому обслуживанию	10.93MB – ru
Safety Instructions - HeatMaster C/TC Evo - WaterMaster (X) Evo	2.85MB
Technico-commercial manual - HeatMaster TC EVO - WaterMaster EVO (X)	4.91MB
Ecodesign
Energy Label
Product Fiche
BIM Files
BIM Files