Heat Loss Calculation Sheet

Room	Air			Windows		External Walls		Floor		Ceiling / Roof		Internal Walls		Total	Temp. Diff.	Heat Loss (Watts)	Total Heat Loss Add 10 % (Watts)	W/m^3
	Volume (m^3)	Air Change Rate /hr	Specific Heat factor	‘U’ value W/m^2 ^oC	Area (m^2)	‘U’ value W/m^2 ^oC	Area (m^2)	‘U’ value W/m^2 ^oC	Area (m^2)	‘U’ value W/m^2 ^oC	Area (m^2)	‘U’ value W/m^2 ^oC	Area (m^2)	(W/^oC)	deg.C
Conference Suite No.1 (21^oC)	5488	0.4 From CIBSE guide A Table 4.17 - 1500m^2 part L 2002.	0.34	2.8	53.3	0.35	352	0.25	784	0.25	896
			746		149		123		196		224			1438	23	33,074	36,381	6.6
Lobby	540	2	0.34	2.8	17	0.35	42	0.25	108	0.25	108
			367		48		147		27		27			616	23	14,168	15,585	29
Hall	813	1	0.34	2.8	-	0.35	4	0.25	162	0.25	162
Office	150	1	0.34	2.8	4.7	0.35	22	0.25	30	0.25	30