Ultra Oil Boiler

Optional Advanced Features Module that provides indoor/outdoor reset, DHW priority, stage firing and more
Dedicated water-only oil boiler
Flexible direct or chimney venting - no power assisted fan needed
Reversible swing-away burner door
Three-pass cast iron heat exchanger with captured elastomer seals
Energy Star Rating
87% AFUE Series 3

Downloads

Technical Data

Model	AFUE (%)	CSA Input (GPH)	Net (GPH)	DOE Heating Cap. (GPH)	Vent Size (in.)
UO-3 (0.80 GPH)	87	0.8	85	99	8 x 8
UO-3 (1.00 GPH)	87	1	106	123	8 x 8
UO-4	87	1.2	127	148	8 x 8
UO-5	87	1	150	173	8 x 8