Canada-wide gas boiler information · On-site service in Greater Vancouver, BC
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Comparison
Verdict in brief
The New Yorker CG-F CG30F and New Yorker CG-F CG40F are both non-condensing boilers in the New Yorker Boiler CG-F line. The New Yorker CG-F CG30F is documented at 70 MBH input, 59 MBH heating capacity and 84% AFUE, while the New Yorker CG-F CG40F is documented at 105 MBH input, 88 MBH heating capacity and 84% AFUE. New Yorker CG-F CG40F lists 35 MBH more input than New Yorker CG-F CG30F (105 MBH against 70 MBH). Both list the same published AFUE of 84%. New Yorker CG-F CG40F lists 50 lb more shipping weight than New Yorker CG-F CG30F (304 lb against 254 lb).
Published manufacturer figures. Input and output are kept separate; blanks mean the manufacturer did not publish that value.
| Specification | New Yorker CG-F CG30F | New Yorker CG-F CG40F |
|---|---|---|
| Input | 70 MBH | 105 MBH |
| DOE heating capacity | 59 MBH | 88 MBH |
| Net AHRI water rating | 51 MBH | 77 MBH |
| Efficiency (AFUE) | 84 % | 84 % |
| Domestic hot water | Heating-only boiler — domestic hot water comes from a separate indirect tank or water heater | Heating-only boiler — domestic hot water comes from a separate indirect tank or water heater |
| Approx. shipping weight | 254 lb | 304 lb |
| Dimensions (width × height × depth) | 14" × 40" × 32" | 16" × 40" × 32" |
| Venting | Chimney vented with integral draft diverter | Chimney vented with integral draft diverter |
| Supply/return connections | 1-1/4" supply and 1-1/4" return | 1-1/4" supply and 1-1/4" return |
| Gas valve connection | 1/2" | 1/2" |
| Control | Integrated boiler control with thermal purge and integral LWCO | Integrated boiler control with thermal purge and integral LWCO |
| Fuel | Natural gas ('N' suffix) or LP gas ('L' suffix) | Natural gas ('N' suffix) or LP gas ('L' suffix) |
| Vent diameter | 4" | 5" |
Published ratings: the New Yorker CG-F CG30F is rated 70 MBH input, 59 MBH heating capacity and 84% AFUE; the New Yorker CG-F CG40F is rated 105 MBH input, 88 MBH heating capacity and 84% AFUE. New Yorker CG-F CG40F lists 35 MBH more input than New Yorker CG-F CG30F (105 MBH against 70 MBH). Both list the same published AFUE of 84%.
New Yorker CG-F CG40F lists 50 lb more shipping weight than New Yorker CG-F CG30F (304 lb against 254 lb). The dimensions differs: the New Yorker CG-F CG30F lists 14" × 40" × 32", while the New Yorker CG-F CG40F lists 16" × 40" × 32". The vent diameter differs: the New Yorker CG-F CG30F lists 4", while the New Yorker CG-F CG40F lists 5".
Both records print the same AFUE (84%), domestic-hot-water arrangement (Heating-only boiler — domestic hot water comes from a separate indirect tank or water heater), venting (Chimney vented with integral draft diverter) and water connections (1-1/4" supply and 1-1/4" return), per the cited sources.
New Yorker Boiler
The New Yorker CG-F CG30F is the second size sharing the 14-inch cabinet and 4-inch vent: 70 MBH input with 59 MBH DOE heating capacity and a 51 MBH net AHRI water rating at 84.0% AFUE, chimney vented in 4".
New Yorker Boiler
The New Yorker CG-F CG40F is the third size, stepping to a 5-inch vent: 105 MBH input with 88 MBH DOE heating capacity and a 77 MBH net AHRI water rating at 84.0% AFUE, chimney vented in 5".
The New Yorker CG-F CG40F lists 105 MBH, against 70 MBH on the New Yorker CG-F CG30F, per the cited documentation.
Both list the same AFUE of 84%.
It ships at 304 lb against 254 lb for the New Yorker CG-F CG30F, per the cited sources.
A consultation includes a heat-loss review so the size is right the first time.
On-site service in Greater Vancouver, BC. ROMA lists “Open 7 days” on its site; call to confirm same-day availability.
Sources and verification
Facts checked September 9, 2026. Last updated September 9, 2026. Technical reviewer: not yet assigned.