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Boilers.caby ROMA Heating & Cooling

Comparison

Lochinvar Epic EPB080N vs EPB110N

Verdict in brief

The Epic EPB080N and EPB110N are adjacent wall-hung heating boilers: 8.3-80 MBH versus 11-110 MBH input, both at 95% AFUE. The 080 uses 2" venting and a 120 lb shipping weight; the 110 steps to 3" venting, 126 lb and 28 MBH more DOE heating capacity.

Side by side

Published manufacturer figures. Input and output are kept separate; blanks mean the manufacturer did not publish that value.

Comparison of Lochinvar Epic EPB080N and Lochinvar Epic EPB110N
SpecificationLochinvar Epic EPB080NLochinvar Epic EPB110N
Input, minimum8.3 MBH11 MBH
Input, maximum80 MBH110 MBH
Efficiency (AFUE)95 %95 %
DOE heating capacity74 MBH102 MBH
Net AHRI water rating64 MBH89 MBH
dhw-flow
Gas connection1/2"1/2"
Water connection1"1"
Air inlet size2"3"
Vent size2"3"
Shipping weight120 lb126 lb
Turndown10:110:1

What actually separates them

The EPB-Sub-01 rating table lists the EPB080N at 8.3-80 MBH input, 74 MBH DOE heating capacity and a 64 MBH net AHRI rating; the EPB110N lists 11-110 MBH input, 102 MBH DOE capacity and an 89 MBH net AHRI rating, both at 95.0% AFUE.

Venting differs by size: the 080 uses 2" air and vent connections up to 100 equivalent feet, while the 110-199 models use 3"; both share a 1/2" gas connection and 1" water connection.

The shipping weight steps from 120 lb (EPB080N) to 126 lb (EPB110N), and both carry the same 10:1 turndown and SMART CONTROL feature set.

CurrentSold in Canada
Input
8.3–80 MBH
Output (max)
AFUE
95 %

The Lochinvar Epic EPB080N is a wall-mounted heating-only boiler rated 8.3-80 MBH input, 74 MBH DOE heating capacity and a 64 MBH net AHRI rating at 95% AFUE.

Natural gasPropaneHeating-only
CurrentSold in Canada
Input
11–110 MBH
Output (max)
AFUE
95 %

The Lochinvar Epic EPB110N is a wall-mounted heating-only boiler rated 11-110 MBH input, 102 MBH DOE heating capacity and a 89 MBH net AHRI rating at 95% AFUE.

Natural gasPropaneHeating-only

Frequently asked questions

What vent size does the Epic EPB080N use?

The EPB-Sub-01 rating table prints 2" air and vent connections for the EPB080N; the EPB110N and larger models use 3".

Do both Epic models have the same efficiency?

Yes — the submittal prints 95.0% AFUE for every EPB, EPC and EFC size.

Not sure which one fits your home?

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.

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