ROYALTON® 95% AFUE Up/Horiz. Gas Furnaces w/ PSC Blower Motor


When you’re looking for reliable, high efficiency heating and cooling equipment, with great features and smart designs that can save you money, count on ROYALTON to deliver years of comfort. The 95G1 series furnace is ideal for new or replacement residential or commercial installations. These 95% efficient single stage natural gas ready furnaces have a 33 in. tall cabinet, are available in upflow/horizontal models. The optional model 11K50 conversion kit is available for those needing to convert from natural gas to propane (LP gas). The unit is certified for Category IV venting and may be vented either through a side wall or roof applications using approved plastic pipe as allowed by the National Fuel Gas Code. Features include an electronic hot surface igniter for increased safety and efficiency, multi-speed maintenance free PCM blower motor for efficient operation, and self-diagnostic control module to monitor operation and simplify troubleshooting. The primary heat exchanger is constructed of tubular aluminized steel with crimped non-welded construction, and has an AL29-4C stainless steel secondary heat exchanger. Units are factory assembled, wired and tested to assure safe, dependable, and economic installation and operation. NOTE: Requires 1/2 in. input to gas valve, dedicated circuit breaker, and 120-Volt wiring with proper polarity and ground. Not certified for mobile home use. Not approved for installation in CA per new emissions standards.

10-Year Limited Parts Warranty*
Limited Lifetime Heat Exchanger Warranty*

WARNING: Cancer and Reproductive Harm –

*Please Note: To qualify for the extended 10-Year Limited Parts Warranty, the unit must be registered online at within 90 days of purchase for replacement or closing for new home construction. Otherwise, the standard 5-Year Limited Parts Warranty is in effect.

Tech Guide

Installation Manual exceeds the file size, please email us at for a copy of the manual


Natural gas ready and may be converted to LP gas with optional conversions kit, model 11K50

Upflow/horizontal design with compact cabinet height of 33 in. for flexible installation

Aluminized steel primary with crimped non-weld construction, and stainless steel secondary heat exchangers

Maintenance-free, multi-speed, permanently lubricated direct-drive PSC blower motor

Built-in, high level self-diagnostics with fault code displays standard on integrated control module for reliable operation

Venting applications – may be installed as either 2-pipe sealed combustion, or single-pipe vent using indoor air for combustion air

Equipment should be sized, selected and installed by a qualified professional to ensure proper installation, safe operation, adherence to federal, state and local codes and for valid warranty; see installation guide for more details

10 year limited parts warranty / lifetime heat exchanger warranty with online registration

Category IV Venting; may be vertically or horizontally vented using Schedule 40 PVC as either a one-pipe or two-pipe system for maximum flexibility in installation

Not Certified for Mobile Home use

Not Certified for use in California

Sizing Guide


You can refer to an estimate or proposal from a local contractor, refer to the size of your existing system that you may want replaced, or use the sizing estimation chart provided on this page. Use the map to determine your Region based on the location of your home. Using the equipment charts, find your Region and go down the column to locate the range that covers the Square Footage of your home. Follow the row to the right to determine the recommended Furnace for your application.



Square Footage of Your Home Furnace Model
820-1024 885-1105 990-1235 1200-1500 1345-1680 95G1UH045BP12
1024-1560 1105-1685 1235-1880 1500-2285 1680-2560 95G1UH070BP12
1560-2075 1685-2235 1880-2500 2285-3035 2560-3400 95G1UH090CP12/16
2075-2585 2235-2790 2500-3120 3035-3785 3400-4240 95G1UH110CP20
2585-3120 2790-3370 3120-3765 3785-4570 4240-5120 95G1UH135DP20


NOTE: These tables an charts are intended to be used as a guideline only. The information is based on conventional window space (<15%), insulation and building construction. Only use these tables as a reference. When including a finished basement, use 1/2 of the finished basement square footage with the rest of the area being calculated.

Models & Specs

95% AFUE Upflow/Horizontal Gas Furnace Models

Hamilton Model Number BTU Input/Output Dimensions H x W x D (in.) Available Tons Outlet Opening Weight (lbs.) Energy Guide
95G1UH045BP12 44,000 / 42,000 33 x 17.5 x 28.5 2.0 – 3.0 16.375 x 19.5 115 EnergyGuideIcon2
95G1UH070BP12 66,000 / 64,000 33 x 17.5 x 28.5
2.0 – 3.0 16.375 x 19.5 120 EnergyGuideIcon2
95G1UH090CP12 88,000 / 85,000 33 x 21 x 28.5 2.0 – 3.0 19.875 x 19.5
137 EnergyGuideIcon2
95G1UH090CP16 88,000 / 85,000 33 x 21 x 28.5 3.0 – 4.0 19.875 x 19.5 140 EnergyGuideIcon2
95G1UH110CP20 110,000 / 106,000 33 x 21 x 28.5 4.0 – 5.0* 23.375 x 19.5 155 EnergyGuideIcon2
95G1UH135DP20 132,000 / 126,000 33 x 24.5 x 28.5 4.0 – 5.0* 23.375 x 19.5 172 EnergyGuideIcon2

*Please Note: 5 Ton/2000 CFM applications require two (2) side air returns.

Optional Furnace Accessories

Item No. Description Weight (lbs.)
11K50 LP (Propane) Conversion Kit for all Single Stage ROYALTON Gas Furnaces 1
RA 16 Return Air Drop Assembly (Upflow Applications Only) 50
WKDP 20 Universal Trim to Fit Plenum – 20″ x 20″ x 47″ (for Heat Only Applications) 28
-15 5/2 Day Programmable Single Stage Heat/Cool Thermostat 1
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