
Dimplex Heatbook
scan for more info
dimplex.co.uk/heatdesign
Dimplex provides a number
of options, to meet different property
and timescale requirements.
If you need to obtain an indication
of the heating requirements for
estimating or if you need heating
for one or two rooms, please use
the Selection Guide below.
Alternatively use our online calculator
at www.dimplex.co.uk/heatdesign
For single properties, please complete
the form on page 102 and send it with
a sketch plan to our heating design
department. We aim to provide
an accurate assessment within
7 working days. For multiple properties,
please send us comprehensive scale
drawings (scale 1:50 or 1:100)
together with construction details
and any other relevant information.
We offer a 14 working day service
for this type of assessment.
See page 102 for contact details.
Heater sizing table
The tables below provide heater sizing
guidance for traditional electric heating
systems, including Quantum, storage
heaters and panel heaters. For traditional
electric heating the preferred options for
living and dining rooms are Quantum
or CXLS combination storage heaters.
Knowing the floor area, the wall construction
and the number of outside walls, the heater
loading in kilowatts is indicated in the
appropriate table. These tables do not
take into account particularly old properties
or those built very recently. If your property
fits into one of these classifications,
please complete the form on page 102
so that we can provide a more accurate
assessment. For sizing guidance for
DuoHeat radiators please refer to page 101.
Living or dining room: Quantum
Heater loading in kW. Temperature 21°C
Floor
area
Solid walls
no. of outside walls
Cavity walls
no. of outside walls
Insulated cavity walls
no. of outside walls
m
2
1 2 3 1 2 3 1 2 3
12 1.84 2.16 2.88 1.60 1.92 2.48 1.12 1.28 1.68
16 2.08 2.48 3.20 1.84 2.32 2.88 1.36 1.60 1.92
20 2.64 3.12 3.92 2.32 2.72 3.44 1.68 1.92 2.32
24 2.96 3.44 4.32 2.64 3.12 3.76 2.08 2.32 2.64
28 3.28 3.92 4.80 2.96 3.44 4.24 2.16 2.48 2.96
32 3.52 4.32 5.28 3.28 3.76 4.72 2.40 2.72 3.20
For XLS/XLN heaters multiply loading by 2, for CXLS multiply by 1.25.
Commercial heating For greater control and economy of operation Quantum heaters
are recommended. Sizing is based on a single storey with a ceiling height of 3m and
a minimum of 75mm of roof insulation.
Office: Quantum
Heater loading in kW. Temperature 21°C
Floor
area
Solid walls
No. of outside walls
Cavity walls
No. of outside walls
Insulated cavity walls
No. of outside walls
m
2
1 2 3 1 2 3 1 2 3
15 2.16 2.96 4.08 2.00 2.56 3.52 1.68 2.08 2.64
20 2.64 3.52 4.48 2.40 3.12 4.00 2.08 2.56 3.12
25 2.96 4.08 5.20 2.72 3.68 4.56 2.40 3.04 3.60
30 3.52 4.72 5.84 3.36 4.24 5.20 2.88 3.52 4.16
40 4.80 5.92 7.68 4.40 5.36 6.72 3.92 4.48 5.36
50 5.28 6.80 8.40 4.96 6.24 7.44 4.48 5.28 6.08
For XLS/XLN heaters multiply loading by 2, for CXLS multiply by 1.25.
Kitchen: Quantum
Heater loading in kW. Temperature 18°C
Floor
area
Solid walls
no. of outside walls
Cavity walls
no. of outside walls
Insulated cavity walls
no. of outside walls
m
2
1 2 3 1 2 3 1 2 3
10 1.28 1.68 2.32 1.12 1.60 1.92
For all kitchens with
cavity wall insulation
direct heating is preferred.
12 1.52 2.16 2.64 1.36 1.84 2.32
14 1.68 2.40 2.88 1.60 2.08 2.48
16 1.92 2.64 3.12 1.68 2.32 2.72
For XLS/XLN heaters multiply loading by 2, for CXLS multiply by 1.25.
Bedrooms: For bedrooms panel heaters are recommended.
Heater loading in kW. Temperature 18°C
Floor
area
Solid walls
no. of outside walls
Cavity walls
no. of outside walls
Insulated cavity walls
no. of outside walls
m
2
1 2 3 1 2 3 1 2 3
8 0.8 1.3 1.7 0.8 1.0 1.4 0.8 0.9 1.4
12 0.9 1.8 2.3 0.9 1.4 2.1 0.8 1.4 1.8
16 1.2 2.1 2.7 1.0 1.7 2.2 0.9 1.6 2.1
20 1.4 2.2 3.1 1.2 2.0 2.6 1.0 1.8 2.4
24 1.5 2.3 3.4 1.2 2.1 2.9 1.0 1.9 2.5
Online calculator also available at
dimplex.co.uk/heatdesign
How to use this selection guide
For XLS/XLN heaters multiply loading by 1.5.
100
Heating design guide
Comentários a estes Manuais