Radiant Heating

An energy efficient, water based space heating alternative

Radiant Heating brochure

(1.26MB PDF format)

Performance

Radiant heating output will depend on panel size and the difference between the mean water temperature (mwt) and room temperatures.

The outputs based on a mwt of 76°C with 20°C room temperature, resulting in a temperature differential of 56°C are listed below. Correction factors for other temperature differentials are also provided.

HCP Radiant Heating outputs have been tested to BS EN 14037 and BS EN 442.

Heat output
Recessed into Suspended Ceiling
Panel Ref.	Nominal width (mm)	Pipe Conns.	Heat output per linear metre of panel (watts)
RCT300	300	s/e	196
RCT300	300	o/e	204
RCT450	450	s/e	260
RCT450	450	o/e	262
RCT600	600	s/e	320
RCT600	600	o/e	326
RCT750	750	s/e	408
RCT750	750	o/e	409
RCT900	900	s/e	459
RCT900	900	o/e	464

Heat outputs are tested to European EN14037 standards at HLK Laboratories, Stuttgart. Test report number - DF09 D12.2755

Heat output
Recessed into Suspended Ceiling
Panel Ref.	Nominal with (mm)	Pipe Conns.	Heat output per linear metre of panel (watts)
RCT300	300	s/e	213
RCT300	300	o/e	222
RCT450	450	s/e	283
RCT450	450	o/e	285
RCT600	600	s/e	348
RCT600	600	o/e	356
RCT750	750	s/e	443
RCT750	750	o/e	445
RCT900	900	s/e	499
RCT900	900	o/e	504

Heat outputs are tested to BS EN442 standard at BSRIA, UK.

Correction Factors
Variation in ΔT
ΔT m.w.t. - e.a.t. K	Corretion Factor	ΔT m.w.t. - e.a.t. K	Correction Factor
30	0.48	57	1.02
35	0.57	58	1.05
40	0.67	59	1.07
45	0.77	60	1.08
50	0.87	61	1.10
51	0.89	62	1.13
52	0.91	63	1.16
53	0.93	64	1.18
54	0.96	65	1.19
55	0.98	70	1.29
56	1.00	75	1.40
56.5	1.01	80	1.51

All outputs in watts/metre and based on LTHW 76°C mean water temperature, 20°C room temperature and a flow rate above 0.010 kg/s.
(KEY: s/e = same end connection o/e = opposite end connection m.w.t. = mean water temperature e.a.t. = entering air temperature)

Radiant Heating

Performance

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