The Glow-worm 28kW combi boiler contains a stainless-steel heat exchanger and has one of the smallest footprints on the market, making it cupboard-fit. Furthermore, the MicraCom comes complete with a 1.25m mains cable.
Key Features and Benefits
Stainless steel heat exchanger
Proven robust and successful concept with over 6 million installed boilers
Compact footprint
MicraCom is one of the smallest boilers available on the market with dimensions of 626mm x 400mm x 270mm
Comes complete with fittings pack
To ensure trouble free connections to the boiler via 15 and 22mm compression fittings and a gas valve with a gas test point accessible externally to the boiler
Boiler interface
Large illuminated white on black LED user interface with compact and bright display with six buttons
24-hour analogue timer available as an accessory
Hinges down from underneath the boiler and can be connected without removing the boiler case
LPG compatible
Allowing flexibility of install
Removable side panels
Easy access for service and maintenance
Specifications
Horizontal flue pack – 0010035784
Vertical flue pack – 0010035785
Dimension
Side clearance mm 5
Top clearance mm 150
Top clearance for rear flue mm n/a
Bottom clearance mm 180
Front clearance* mm 500
Heating
Nominal heat output range at 50/30°C (condensing mode) kW 7.7 – 25.9
Nominal heat output range at 75/55°C (condensing mode) kW 6.9 – 23.9
Flow temperature °C 30 – 75
Modulation (maximum) 1:X 1:4
Domestic hot water
Max. heat output water generation kW 28
Min. operating pressure of boiler bar 0.3
Lowest water flow for operation l/min 1.7
DHW flow rate (at 35°C)** l/min 11.5
Hot water output temp. range °C 35 – 55
Mechanical
Gas inlet connection (pipe size) mm 15
Heating flow and return connections (pipe size) mm 22
Hot and cold water connections (pipe size) mm 15
Filling loop supplied No
Factory fitted timer No
Boiler lift weight (Dry boiler) kg 26.5
Performance
NOx (En 15502-2-1) mg/kWh 32
ErP efficiency % 93
ErP decibel rating dBa 54
PCDB seasonal efficiency (SAP 2009/2012) % 88.9
Fluing options
Max. horizontal flue length 60/100 m 9
Max. vertical flue length 60/100 m 10
Max. horizontal flue length 80/125 m 20
Max. vertical flue length 80/125 m 20
Rear flue options No
Permissible flue classifications C13, C33, C43, C53
Gas Assist Glow-worm compact 28c install offer
Glow-worm compact 28c
Glow-worm power filter
Wireless thermostat
Calmag scale reducer
Sentinel x800 Flush
