Canada-wide gas boiler information · On-site service in Greater Vancouver, BC
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Comparison
Verdict in brief
The PHNTM210 and PHNTM285 are the two Phantom-X sizes, both 95.0% AFUE at 5:1 modulation on the Sage2.x control: the 285 fires 57–285 MBH against the 210's 42–210 MBH, printing 262 MBH gross output and a 228 MBH net AHRI rating (194/169 on the 210). It steps to 1-1/4" NPT supply/return with 3/4" NPT gas, holds 2.4 gal against 1.7 gal, and ships at about 256 lb against 206 lb.
Published manufacturer figures. Input and output are kept separate; blanks mean the manufacturer did not publish that value.
| Specification | Crown Phantom-X PHNTM210 | Crown Phantom-X PHNTM285 |
|---|---|---|
| Input, minimum | 42 MBH | 57 MBH |
| Input, maximum | 210 MBH | 285 MBH |
| Heating capacity (gross output) | 194 MBH | 262 MBH |
| Net AHRI water rating | 169 MBH | 228 MBH |
| Efficiency (AFUE) | 95 % | 95 % |
| Turndown ratio | 5:1 | 5:1 |
| Water content | 1.7 gal | 2.4 gal |
| Shipping weight | 206 lb | 256 lb |
| Dimensions (A × B) | 23-15/16" × 32-3/16" | 21-13/16" × 43-7/16" |
| Supply and return connections | 1" NPT | 1-1/4" NPT |
| Gas connection | 1/2" NPT | 3/4" NPT |
| Control | Sage2.x control with outdoor reset sensor | Sage2.x control with outdoor reset sensor |
| Fuel | Natural gas or LPG | Natural gas or LPG |
| 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 |
Both Phantom-X models are stainless steel water-tube condensing boilers at 95.0% AFUE with 5:1-modulating burners, direct spark ignition, the Sage2.x control (outdoor reset sensor included, lead/lag to 8 boilers) and multiple direct-vent options, with ratings reducing 4% per 1,000 ft above 2,000 ft and no LP above 7,000 ft.
The PHNTM285 lifts input from 42–210 to 57–285 MBH: its ratings row prints 262 MBH gross heating capacity and a 228 MBH net AHRI water rating against the PHNTM210's 194 and 169 MBH.
Physically the 285 is the larger plant: supply/return grows from 1" to 1-1/4" NPT and gas from 1/2" to 3/4" NPT, water content from 1.7 to 2.4 gal, and shipping weight from about 206 to about 256 lb. The two are different chassis shapes — the 210 measures 23-15/16" (A) by 32-3/16" (B) while the 285 stands 43-7/16" tall at 21-13/16" wide — so the mechanical-room layout, not just the load, decides between them.
Crown Boiler Co.
The Crown Phantom-X PHNTM210 fires 42 to 210 MBH input at 95.0% AFUE with 5:1 modulation: 194 MBH gross output and a 169 MBH net AHRI rating on the Sage2.x control with outdoor reset, at about 206 lb shipping weight.
Crown Boiler Co.
The Crown Phantom-X PHNTM285 is the largest Phantom-X: 57 to 285 MBH input at 95.0% AFUE with 262 MBH gross output and a 228 MBH net AHRI rating on the Sage2.x control, connecting on 1-1/4" NPT supply/return at about 256 lb.
Input rises from 42–210 to 57–285 MBH, gross output from 194 to 262 MBH and net AHRI from 169 to 228 MBH, at the same 95.0% AFUE and 5:1 turndown.
No — the PHNTM210 connects on 1" NPT supply/return with 1/2" NPT gas; the PHNTM285 steps to 1-1/4" NPT with 3/4" NPT gas.
No — the PHNTM210 measures 23-15/16" × 32-3/16" (A × B); the PHNTM285 is 21-13/16" × 43-7/16" and about 50 lb heavier.
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 8, 2026. Last updated September 8, 2026. Technical reviewer: not yet assigned.