Weil-McLain Oil Boiler Installation Chicago
Weil-McLain · Chicago Oil Boiler Installation
Weil-McLain Oil Boilers
Steam and hot-water oil boilers for Chicago homes with existing oil heating infrastructure. SGO, WGO, WTGO, and Ultra Oil — all installed by D's Air & Heating, Inc.
Weil-McLain Oil Boiler Series
SGO® Series 4
Oil-fired steam boiler. 82% AFUE, Category I venting. Ideal for single-pipe and two-pipe steam systems in Chicago homes.
Ultra® Oil
High-efficiency oil hot-water boiler. 87% AFUE — the highest in the Weil-McLain oil lineup. Category I venting.
WGO® Series 4
Cast-iron oil hot-water boiler. 86% AFUE, Category I venting. Proven reliability for Chicago homes with oil heating.
WTGO® Series 4
Cast-iron oil hot-water boiler with tankless coil option. 86% AFUE, Category I venting.
*Local taxes may apply. Financing available on approved credit.
Why D's Air & Heating, Inc. Installs Weil-McLain Oil Boilers
Steam & Hot-Water Options
Weil-McLain offers both oil steam (SGO) and oil hot-water (WGO, WTGO, Ultra Oil) boilers for Chicago homes.
Cast-Iron Durability
Cast-iron heat exchanger sections built to last 30–50 years with proper maintenance.
Category I Venting
Compatible with standard Category I venting — works with most existing oil boiler flue configurations.
Chicago-Proven
Oil boilers remain a reliable choice for Chicago homes with existing oil heating infrastructure.
Up to 87% AFUE
The Ultra Oil reaches 87% AFUE — the highest efficiency in the Weil-McLain oil lineup.
Weil-McLain Warranty
Backed by Weil-McLain's limited warranty. D's Air & Heating, Inc. registers at startup.
All Weil-McLain Oil Boiler Models — Specs
| Model | Type | Efficiency | BTU/hr | Venting | Installed Price |
|---|---|---|---|---|---|
| SGO® Series 4 Oil Steam | oil steam | 82% AFUE | 105,000–420,000 | Category I | Call for Pricing |
| Ultra® Oil | oil hot water | 87% AFUE | 85,000–210,000 | Category I | Call for Pricing |
| WGO® Series 4 Oil Hot Water | oil hot water | 86% AFUE | 105,000–420,000 | Category I | Call for Pricing |
| WTGO® Series 4 Oil Hot Water | oil hot water | 86% AFUE | 105,000–420,000 | Category I | Call for Pricing |
*Local taxes may apply. Financing available on approved credit.
Other Weil-McLain Residential Series
Ready to Replace Your Oil Boiler?
D's Air & Heating, Inc. installs Weil-McLain oil boilers throughout Chicago and the southwest suburbs. Call now or book online.