Cast Iron Boilers

ULTRAResidential Oil & Gas Cast Iron Boiler

27–83 kW

Compact cast iron boiler with a 3 pass design for dependable residential heating.

Key Features

Model			4	5	6	7	8	9
Heat output CE 92/42		KW	27.26	38.61	49.95	61.29	72.64	83.39
Input power		KW	30.33	42.82	55.26	67.67	80.07	92.14
Number of elements			4	5	6	7	8	9
Gas	Flowing fume mass	Kg/h	46	65	84	102	121	139
	Fume volume	m³/h	65	91	115	140	164	188
	C02 percentage	%	10.2	10.2	10.2	10.2	10.2	10.2
Oil	Flowing fume mass	Kg/h	47	67	87	106	125	144
	Fume volume	m³/h	66	93	118	143	168	193
	C02 percentage	%	12.7	12.7	12.7	12.7	12.7	12.7
Fume temperature		°c	217	214	207	203	199	195
Fume Circuit volume		L	21.9	28.9	35.9	42.8	49.8	56.8
Combustion chamber lenght		mm	248	331	414	497	580	663
Combustion chamber Diameter		mm	300*270	300*270	300*270	300*270	300*270	300*270
Necessary draw		mbar	0.10	0.12	0.16	0.24	0.31	0.40
Fume resistance		mbar	0.05	0.07	0.11	0.19	0.26	0.35
Efficiency at 30 % charge 50°c		%	90.0	90.5	90.7	91.2	91.5	91.1
Efficiency at 100 % charge 70°c		%	89.9	90.2	90.4	90.6	90.7	90.5
Nominal water flow at Pn ΔT 15°		m³/h	1.2	1.7	2.1	2.6	3.1	3.6
Water capacity		L	13.5	16.4	19.3	22.2	25.1	28.0
Maximum working pressure		Bar	6	6	6	6	6	6
Working temperature		°c	90	90	90	90	90	90
Ø Flue outlet		mm	130	130	130	150	150	150
Supply Ø		"G	1 1/4	1 1/4	1 1/4	1 1/4	1 1/4	1 1/4
return Ø		"G	1 1/4	1 1/4	1 1/4	1 1/4	1 1/4	1 1/4
Drain		"G	1/2	1/3	1/4	1/5	1/6	1/7
Boiler body weight		Kg	131	154	180	205	228	254

MODEL		4	5	6	7	8	9
Dimensions (mm)	B - Depth	440	520	600	680	760	840