Crown Aruba 6 AWR038C
The Crown Aruba 6 AWR038C is the smallest Aruba 6 (two sections; not for installation above 2,000 ft): a fixed 38 MBH input for 32 MBH DOE heating capacity and a 28 MBH net AHRI water rating at 84.0% AFUE, with a 4" flue collar, 1 US gallons of water content and 202 lb approximate shipping weight.
Key figures
- Max input
- 38 MBH
- Max CSA output
- —
- AFUE
- 84 %
- Min input
- —
Input is gas energy consumed; output is heat delivered. Never size from input alone.
Crown Aruba 6 AWR038C in practice
The Aruba 6 AWR038C is a cast-iron, gas-fired natural-draft hot water boiler rated at a fixed 38 MBH input with 32 MBH DOE heating capacity and a 28 MBH net AHRI water rating (1.15 piping and pickup allowance) at 84.0% AFUE per the AWR space-heating ratings table (literature PN 980784; I&O manual 112933-01).
The product dimensions table lists a 4" flue collar, 1 US gallon(s) of water content, a 13" "W" dimension, 202 lb approximate shipping weight and 143 lb boiler weight. The boiler carries the integrated boiler control with integral LWCO, vents as Category I into an approved chimney, and is piped standard on the left side with field conversion to right-side piping available.
The two-section AWR038C is not to be installed above 2,000 ft (literature sheet). Boilers.ca documents this model at model level from the product page, literature and I&O manual. No official Canadian-sales statement was found, so canadianStatus stays 'unknown'; installation, gas and venting work belongs with a licensed contractor.
Best suited to
- Homes with a chimney-vented design load near the 38 MBH fixed input
- Owners comparing the current Aruba 6 ratings with a legacy Aruba 4/5 installation
- Replacement projects wanting an integrated boiler control with integral LWCO
Applicability and support
- Model number
- AWR038C
- Canadian availability
- unknown
- Production status
- current
- ROMA supplies
- Confirmed at consultation
- ROMA services
- Confirmed at consultation
- Warranty
- Not verified
Where ROMA provides on-site service
On-site service is currently offered in Greater Vancouver, BC, including Vancouver, Burnaby, Richmond, Surrey, Coquitlam, North Vancouver, West Vancouver, New Westminster, Port Coquitlam, Port Moody, Delta, Langley, Maple Ridge, Abbotsford, Chilliwack, White Rock, Pitt Meadows, Tsawwassen, Anmore, Lions Bay, Belcarra, Bowen Island, Mission. Everything else on this site is reference information you can use anywhere in Canada.
Specifications
Published specifications
Values as published by Crown Boiler Co.. Units are shown with every value; notes flag conflicting sources or missing figures.
| Specification | Value | Note |
|---|---|---|
| Input | ||
| Input | 38 MBH | Fixed input (no modulation) per the AWR space-heating ratings table (product page; literature PN 980784). Input ratings apply to elevations up to 2,000 ft. |
| Output | ||
| DOE heating capacity | 32 MBH | DOE heating capacity per the AWR space-heating ratings table. |
| Net AHRI water rating | 28 MBH | Net AHRI water rating based on a piping and pickup allowance of 1.15 per the ratings table. |
| Efficiency | ||
| Efficiency (AFUE) | 84 % | 84.0% AFUE printed for every Aruba 6 size per the AWR space-heating ratings table. |
| Domestic hot water | ||
| Domestic hot water | Heating-only boiler — domestic hot water comes from a separate indirect tank or water heater | |
| Venting and air | ||
| Flue collar diameter | 4 in | Flue collar diameter per the product dimensions table (literature PN 980784). |
| Venting | Category I natural draft into an approved chimney | Cast-iron boiler with a built-in rear draft diverter and a vent damper monitored by the integrated boiler control (I&O manual 112933-01). |
| Physical and connections | ||
| Water content | 1 gal | Boiler water content per the product dimensions table. |
| "W" dimension | 13" | "W" dimension per the product dimensions table. |
| Approx. shipping weight | 202 lb | Approximate shipping weight per the product dimensions table. |
| Boiler weight | 143 lb | Boiler (bare) weight per the product dimensions table. |
| Supply/return connections | 1-1/4" NPT | Supply and return connections 1-1/4" NPT; standard piping on the left side, field convertible to right side (I&O manual; product page). |
| Operating limits and other | ||
| Fuel | Natural gas or propane | NG or LP with fuel conversion kits published per model on the literature sheet; AWR038C not to be installed above 2,000 ft and other sizes standard-build approved to 5,400 ft with altitude kits above. |
| Control | Integrated boiler control with integral LWCO | Temperature control, relay and ignition functions in a single module located inside the jacket (product page); additional circulator output for a second zone or indirect water heater. |
Manuals
- Aruba AWR Installation, Operating & Service Manual (PN 112933-01, 7/25)112933-01 · 2025-07
Frequently asked questions
What are the AWR038C's ratings?
38 MBH fixed input, 32 MBH DOE heating capacity and a 28 MBH net AHRI water rating at 84.0% AFUE per the AWR space-heating ratings table.
Is the AWR038C a condensing boiler?
No — the Aruba 6 is a cast-iron, Category I natural-draft boiler with a built-in rear draft diverter, vented into an approved chimney.
Can the Aruba 6 run on propane?
Yes — it is available in NG or LP with published fuel conversion kits; input ratings for elevations above 2,000 ft are covered in the I&O manual's Appendix D.
Questions about the Crown Aruba 6 AWR038C?
Describe what the boiler is doing and get a straight answer about the next step.
On-site service in Greater Vancouver, BC. ROMA lists “Open 7 days” on its site; call to confirm same-day availability.
Compare and explore
Sources and verification
- Velocity Boiler Works — Aruba 6 (AWR) product page · accessed September 9, 2026
- Aruba AWR Installation, Operating & Service Manual, PN 112933-01 (7/25) (PDF) · 112933-01 · accessed September 9, 2026
- Aruba 6 Literature Sheet, PN 980784 (8/25) (PDF) · 980784 · accessed September 9, 2026
Facts checked September 8, 2026. Last updated September 8, 2026. Technical reviewer: not yet assigned.