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Directory: Catalog > Boilers > Slant/Fin Boilers > Gas-Fired Residential

Slant Fin Galaxy Cast Iron Gas Boiler, GG Series

Slant-Fin Galaxy Boiler

Slant/Fin's Galaxy is a hot water boiler heating system which is one of America's most trusted gas boilers. Installed in tens of thousands of homes, Galaxy is the choice of experienced heating professionals everywhere. For homeowners, it's the wise choice for long-term efficiency and reliability. It doesn't rely on complex technologies for its efficiency, so there's less to pay for now and less to go wrong. While other boilers become subject to performance and breakdown problems over the years, you can count on Galaxy for efficient, trouble-free performance.

  • Fuel: Natural Gas or Propane (Shipped as NG unless LP is specified by customer at time of sale)
  • System: Hot Water
  • Capacity: Six sizes, 250 - 399 MBH Input
  • Efficiency: up to AFUE 83%

The computer-aided design of Galaxy's heat exchanger maximizes the transfer of heat from the flame to the water in your heating system. The flue passage design, thermal pin pattern and consistent wall thickness of each casting ensure uniform heat transfer and reduced thermal strain which prolongs the life of the castings. Durable metal push nipples expand and contract with the individual boiler sections that they connect. No flimsy gaskets that may deteriorate and leak.

Product Features:

  • Capacities for residential to light commercial requirements
  • Extended jacket conceals controls, wires and gas valve
  • Intermittent pilot
  • Assembled with only durable metal push nipples
  • 25 Year Limited Lifetime Warranty
  • Standard equipment is listed below
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Intermittent Pilot and Vent Damper - Natural Gas
Slant Fin GG-250HED Packaged Boiler
250,000 BTU Input
209,000 BTU DOE Capacity
82.80% AFUE Efficiency
Intemittent Pilot and Vent Damper
Weight 500 lbs.
Slant Fin GG-275HED Packaged Boiler
275,000 BTU Input
228,000 BTU DOE Capacity
82.70% AFUE Efficiency
Intemittent Pilot and Vent Damper
Weight 510 lbs.
Slant Fin GG-300EDP Packaged Boiler
300,000 BTU Input
240,000 BTU DOE Capacity
80.00% AFUE Efficiency
Intemittent Pilot and Vent Damper
Weight 565 lbs.
Slant Fin GG-350HED Packaged Boiler
350,000 BTU Input
291,000 BTU DOE Capacity
83.00% AFUE Efficiency
Intemittent Pilot and Vent Damper
Weight 635 lbs.
Slant Fin GG-375HED Packaged Boiler
375,000 BTU Input
304,000 BTU DOE Capacity
81.00% AFUE Efficiency
Intemittent Pilot and Vent Damper
Weight 645 lbs.
Slant Fin GG-399HED Packaged Boiler
399,000 BTU Input
327,000 BTU DOE Capacity
82.00% AFUE Efficiency
Intemittent Pilot and Vent Damper
Weight 650 lbs.
Propane (LP) - Installed at factory at time of sale
Optional Propane Conversion

Standard Equipment

  • Pre-assembed cast-iron heat exchanger with built-in air separator
  • Insulated base
  • Pre-assembled insulated flush jacket
  • Flue collector
  • Stainless steel gas burners, gas orifices and manifold assembly
  • Combination gas valve, including manual shut-off, pressure regulator, pilot adjustment and 100% shut-off
  • Two-way combination control (hi-limit and circulator relay)
  • Hi-limit control
  • Altitude, pressure and temperature gauge
  • Pressure relief valve (ASME) 30 psi
  • Draft hood (ships in separate carton)
  • Circulator, Taco 0010 for GG-225 through GG-399
  • Flange for circulator: 1-1/4 in.; 1-1/2 in. GG-250 through GG-399)
  • Circulator manifold
  • Drain cock
  • Rollout Safety Switch
  • Blocked vent safety switch -- unmounted
  • Motorized vent damper (models with suffix "D")
  • Intermittent ignition pilot

Control Features

  • Thermal targeting technology to conserve fuel
  • LWCO function -- Auto or manual reset
  • Thermal pre-purge option
  • LED display for operational info
  • Circulator relay -- three funtion option
  • Outdoor reset optional



Information Source: Slant/Fin Boilers

*IMPORTANT:  By purchasing this boiler from JupiterHeating.com, the customer is agreeing that the unit will be installed by a licensed, professional heating contractor; that the customer and installer will follow all local zoning regulations, as well as all manufacturer's installation instructions, policies, and warranty requirements; and that the customer has read and understood JupiterHeating.com's Terms of Sale.

Shipping for unit is $300 to anywhere in the continental United States (multiple units are shipped at no additional charge).  The rate is based on residential delivery. Shipping savings may by possible for commercial delivery. Contact Us for a custom shipping quote if any of those situations apply, or if you are located outside the continental United States.