Crown Aruba 6 AWR070C

The Crown Aruba 6 AWR070C is a 70 MBH three-section size: a fixed 70 MBH input for 59 MBH DOE heating capacity and a 51 MBH net AHRI water rating at 84.0% AFUE, with a 4" flue collar, 2 US gallons of water content and 254 lb approximate shipping weight.

CurrentCanadian status unknown

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Key figures

Max input: 70 MBH
Max CSA output: —
AFUE: 84 %
Min input: —

Natural gasPropaneHeating-onlyresidential

Input is gas energy consumed; output is heat delivered. Never size from input alone.

Crown Aruba 6 AWR070C in practice

The Aruba 6 AWR070C is a cast-iron, gas-fired natural-draft hot water boiler rated at a fixed 70 MBH input with 59 MBH DOE heating capacity and a 51 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, 2 US gallon(s) of water content, a 13" "W" dimension, 254 lb approximate shipping weight and 180 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.

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 70 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: AWR070C
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.

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Specifications

Published specifications

Values as published by Crown Boiler Co.. Units are shown with every value; notes flag conflicting sources or missing figures.

Crown Aruba 6 AWR070C specifications
Specification	Value	Note
Input
Input	70 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	59 MBH	DOE heating capacity per the AWR space-heating ratings table.
Net AHRI water rating	51 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	2 gal	Boiler water content per the product dimensions table.
"W" dimension	13"	"W" dimension per the product dimensions table.
Approx. shipping weight	254 lb	Approximate shipping weight per the product dimensions table.
Boiler weight	180 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

Alerts documented for this model

Services

Related parts & service

Frequently asked questions

What are the AWR070C's ratings?

70 MBH fixed input, 59 MBH DOE heating capacity and a 51 MBH net AHRI water rating at 84.0% AFUE per the AWR space-heating ratings table.

Is the AWR070C 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 AWR070C?

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.

Call 778-909-5731 Request service

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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.