- Fuel: Oil-Fired
- System: Hot Water
- Combustion: Atmospheric
- Capacity: 4 sizes, .75 to 1.65 GPH Firing Rates
- Efficiency: AFUE 87.0%

The Q3 boiler is a hot water boiler heating system which oil-fired cast iron boiler offers high-efficiency. Its cast-iron design is recognized by heating professionals everywhere as the longest lasting, most durable heat exchanger material. It’s an ideal choice for new construction.
The Q3 is DOE 2021 compliant
Related products
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Fine / Line 30
Fine / Line 30- Residential Hot Water
- Output: 580 Btuh/FT (180 deg. 1 GPM)
- Height: 7-7/8", Depth: 2-11/16" Lengths: 2' - 14'
- Made in the USA by the leader in baseboard heating
- Rust-resistent, galvanized steel enclosures with nu-white enamal finish maintains beauty
- Commercial grade material at residential cost
- Designed for single homes, apartments and renovations
- Optional swedged element tubes (available in 1/2" or 3/4") facilitate joining sections
- Industry’s best high strength support brackets & no-noise expansion cradles
- Accommodates return line with short radius return bend
- Drawn steel end caps and wall trim provide a distinguished look
- 1-3/4" floor-to-front cover opening promotes good air circulation for effective convection heating
- Fully modulating, pivot mounted damper helps control individual room temperatures
- Extendable accessories for wall-to-wall fit with no cutting makes a neat installed appearance
- Easy to open zip-strip cartons
- Shipped fully assembled for fast, easy installation
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Multi / Pak 80
Multi / Pak 80- Res. and light comm.
- Hot Water or Steam
- 590 to 790 Btuh/FT (180 Deg. 1 GPM)
- Height: 8-7/8", Depth: 3-1/2"     Lengths: 2' - 14'
- Made in the USA by the leader in baseboard heating
- Designed for single homes and renovations and light commercial applications
- Fully modulating, pivot mounted damper helps control individual room temperatures
- Neat fitting accessories stay in place to help maintain beautiful appearance
- Optional Flared element tubes (available in 1/2" or 3/4") facilitate joining sections
- Industry’s best high strength support brackets & no-noise expansion cradles
- 2" floor-to-front cover opening promotes good air circulation for effective convection heating
- Extendable accessories for wall-to-wall fit with no cutting makes a neat installed appearance
- Easy to open zip-strip cartons
- Shipped fully assembled for fast, easy installation
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LC Series
LC Series- Material: 18-gauge galvanized steel
- Heights: 8.5" (one tier) & 14" (two tier)
- Depth: 3 1/2"
- Lengths: 2' to 8'
- Choose from Slant/Fin's 5 H-elements for various output requirements
- Wall brackets and Hangers sold separately
- Finish: Galvanized is standard. Custom color available.
- Lengths from 2' to 8'
- Telescopic cover accessories
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Multi / Pak 93
Multi / Pak 93- Material: 18 gauge galvanized steel
- Heights: 9-3/4" (one tier) & 16-3/4" (two tier)
- Lengths: 2' to 8'
- Depth: 3-1/2"
- Factory packaged with brackets and hangers
- Two-piece interlocking top cover/front cover mount on wall brackets
- Damper optional
- Wall brackets and Hangers packaged with complete assembly
- Finish: Nu-White baked enamel is standard. Decorator colors available on special order.
- Lengths from 2' to 8'
- Elements: 4 copper and 1 steel element option
- Telescopic cover accessories
- Fuel: Oil Fired
- System: Hot Water
- Combustion: Atmospheric
- Capacity: 105-231 MBH
- Up to 87.0% AFUE
- For residential to light commercial requirements
- Robust triple pass cast-iron heat exchanger
- Direct Vent model available
- Installer-friendly features
- More BTU's per section than ordinary boilers
- Metal push nipple to connect individual sections
- 25 Year Limited Lifetime Warranty
- The Q3 is DOE 2021 compliant
Your home will be more comfortable with an Q3 boiler because it does not use household air for combustion. It draws combustion air directly from the outdoors and expels exhaust directly to the outdoors through flexible exhaust tubing. Direct venting also reduces the risk of oily odors entering the living area.
The Q3 boiler is designed to protect against the adverse effects of changing operating conditions. Many boilers suffer from poor combustion and soot buildup when their setup conditions are changed by cold oil, cold air or changes in chimney draft. The contoured shape of Intrepid’s heat exchanger has one of the lowest draft losses in the industry. This supports stable combustion. Burners are configured for each specific model to provide smooth, clean, efficient operation. Unlike most oil boilers, Intrepid’s push nipples are located to the side, out of the way of the flue gasses. This creates more uniform heat transfer, minimizes draft loss and reduces soot build-up.


