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Comparison
Verdict in brief
Both the Camus Dynaforce DR500 and the Camus Dynaforce DR600 belong to the Camus Hydronics Dynaforce Series line of condensing boilers. The Camus Dynaforce DR500 is documented at 500 MBTU/hr input, 470 MBTU/hr output and 99% efficiency, while the Camus Dynaforce DR600 is documented at 600 MBTU/hr input, 564 MBTU/hr output and 99% efficiency. Camus Dynaforce DR600 lists 100 MBTU/hr more input than Camus Dynaforce DR500 (600 MBTU/hr against 500 MBTU/hr). Both list the same published efficiency of 99%. Camus Dynaforce DR600 lists 25 lb more shipping weight than Camus Dynaforce DR500 (585 lb against 560 lb).
Published manufacturer figures. Input and output are kept separate; blanks mean the manufacturer did not publish that value.
| Specification | Camus Dynaforce DR500 | Camus Dynaforce DR600 |
|---|---|---|
| Input, maximum | 500 MBTU/hr | 600 MBTU/hr |
| Output, maximum | 470 MBTU/hr | 564 MBTU/hr |
| Turndown ratio | 5:1 | 5:1 |
| Heat-exchanger water content | 6.3 US gal | 6.6 US gal |
| Weight | 560 lb | 585 lb |
| Venting | Category II or IV (SS / AL29-4C, PPE / polypropylene; PVC and CPVC for select systems — consult factory) | Category II or IV (SS / AL29-4C, PPE / polypropylene; PVC and CPVC for select systems — consult factory) |
| Water connections | 1 1/2" NPT | 2" NPT |
| Gas connection | 1" NPT | 1" NPT |
| Electrical requirement | 120 VAC, 60 Hz — 20 A max (boiler only) | 120 VAC, 60 Hz — 20 A max (boiler only) |
| Ignition | Direct igniter, 3 ignition tries then lockout | Direct igniter, 3 ignition tries then lockout |
| Modulation drive | Pulse-width modulation (DR300–DR1000) | Pulse-width modulation (DR300–DR1000) |
| Efficiency | 99 % | 99 % |
| Max. working pressure | 160 psig | 160 psig |
| System return temperature | 40 °F | 40 °F |
| Heat exchanger | 439 SS welded 12-pass watertube, 316L waterways | 439 SS welded 12-pass watertube, 316L waterways |
| Control | Honeywell SOLA touchscreen; Modbus RTU; cascade up to 8 | Honeywell SOLA touchscreen; Modbus RTU; cascade up to 8 |
| Certification | CSA (ANSI Z21.13 / CSA 4.9); ASHRAE 90.1 | CSA (ANSI Z21.13 / CSA 4.9); ASHRAE 90.1 |
Published ratings: the Camus Dynaforce DR500 is rated 500 MBTU/hr input, 470 MBTU/hr output and 99% efficiency; the Camus Dynaforce DR600 is rated 600 MBTU/hr input, 564 MBTU/hr output and 99% efficiency. Camus Dynaforce DR600 lists 100 MBTU/hr more input than Camus Dynaforce DR500 (600 MBTU/hr against 500 MBTU/hr). Both list the same published efficiency of 99%.
Camus Dynaforce DR600 lists 25 lb more shipping weight than Camus Dynaforce DR500 (585 lb against 560 lb). The boiler water content differs: the Camus Dynaforce DR500 lists 6.3 US gal, while the Camus Dynaforce DR600 lists 6.6 US gal. The water connections differs: the Camus Dynaforce DR500 lists 1 1/2" NPT, while the Camus Dynaforce DR600 lists 2" NPT.
Both records print the same turndown (5:1), venting (Category II or IV (SS / AL29-4C, PPE / polypropylene; PVC and CPVC for select systems — consult factory)), gas connection (1" NPT) and electrical requirement (120 VAC, 60 Hz — 20 A max (boiler only)), per the cited sources.
Camus Hydronics
The Camus Dynaforce DR500 is the 500 MBH hydronic-heating size of Camus' fully condensing watertube line: 500 MBTU/hr input, 470 MBTU/hr output, up to 99% thermal efficiency and 5:1 turndown on the Honeywell SOLA control.
Camus Hydronics
The Camus Dynaforce DR600 is the 600 MBH hydronic-heating size of Camus' fully condensing watertube line: 600 MBTU/hr input, 564 MBTU/hr output, up to 99% thermal efficiency and 5:1 turndown on the Honeywell SOLA control.
The Camus Dynaforce DR600 lists 600 MBTU/hr, against 500 MBTU/hr on the Camus Dynaforce DR500, per the cited documentation.
Both list the same efficiency of 99%.
It ships at 585 lb against 560 lb for the Camus Dynaforce DR500, 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.