Specifications

CLIMATE ROOM TEST CHAMBER
A climate room was built to accurately replicate a room from typical UK
housing stock. It has two external walls and two internal walls, and the
temperatures outside all walls, ceiling and floor are accurately controlled.
The U values of walls, windows and door are as follows:
Room dimensions 4m x 3m x 2.4m
U values:
Double layer solid brick outer walls 2.0
Insulated internal walls and ceiling 0.34
Insulated floor 0.25
UPVC double glazed window 3.3
UPVC double glazed door 3.0
Air change rate 1 A/C per hour
THE TEST
A daily temperature profile was set up outside the two external walls to simulate
an average heating day in a property based in Sheffield, England.
Minimum outside temperature +4
o
C
Maximum outside temperature +11
o
C
The heating periods were set at 07:00 to 09:00 and 16:00 to 23:00.
The target room thermal comfort temperature was 21
o
C.
The following heaters were tested under these conditions:
•
3.4kW (input) static storage heater with manual charge control
– supplemented with a direct acting heater
•
2.8kW (input) Quantum heater (QM 125)
RESULTS
Quantum
®
vs static storage heater
Comparative test
00:00
06:00 12:00 18:00 00:00
ROOM TEMPERATURE ºC
DAILY CYCLE HOURS
25
20
15
0
Potential energy saving using Quantum
Comfort temperature profile created by Quantum Heater
Comfort temperature profile created by static storage heater
Ideal comfort temperature profile
Morning
rise
Leave
for work
Return
from work
Retire
to bed
Quantum Energy Use = 10 kWh + 0.2kWh (fan) = 10.2kWh = 9 hours heating @ 21ºC
Conventional Storage Energy Use = 12.2 kWh + 1.3kWh Direct Acting Supplemetary Heating = 13.6kWh = 9 hours heating @ 21ºC
Average weekday profile
Conventional Static 24kWh Storage Heater vs Quantum QM125
13
Comparative test. Quantum vs static storage heater.
Dimplex Quantum
quantumheating.co.uk