Product Overview

Series

Efficient

Oil-Fired

Steel Boiler

• Upto84%AFUE

• 77to139NetBTUs

– In 4 sizes

• Chimneyvented

• Integratedboilercontrol

– User-friendly

 –Energy-saving “thermal purge”

feature circulates residual warm

water in heating system prior to

firing boiler

– Combination high limit

circulator relay

– Extensively tested & proven

• Verticalfiretubeexchanger,

1/4”boiler-platesteel

– Meets the ASME Boiler and

Pressure Vessel Code

• Tanklesscoilavailable

– For domestic hot water

• Enhancedcombustion

chamberseal

– Located between shell and

base, provides increased

efficiency

• Designedforeaseofservice

– Extended coil & fittings,

removable jacket top permits

access without disconnection of

piping

• Lifetimelimitedwarranty

 –See your installing contractor

for more warranty information

AP-U

Fully updated for

DOE 2012 compliance!

MADE IN

U.S.A.

PAGE 1
AP-U Series Efficient Oil-Fired Steel Boiler Fully updated for DOE 2012 compliance! • Up to 84% AFUE • 77 to 139 Net BTUs – In 4 sizes • Chimney vented • Integrated boiler control – User-friendly – Energy-saving “thermal purge” feature circulates residual warm water in heating system prior to firing boiler – Combination high limit circulator relay – Extensively tested & proven • Vertical firetube exchanger, 1/4” boiler-plate steel – Meets the ASME Boiler and Pressure Vessel Code • Tankless coil
PAGE 2
Ratings, Specifications, and Dimensions Model Burner Capacity GPH DOE Heating Capacity MBH (MBH) AHRI Net Ratings (MBH) A S M E H Minumum Chimney Requirements Round In. Rectangle Dia. In. x In. Height Ft. AFUE Dim. “A” (in.) Water Cap. (gal.) Approx Ship Wt. (lbs.) AP-490U 0.75 105 88 77 6 8x8 15 84% 34-9/16 10.7 290 AP-590U 1.00 140 116 103 6 8x8 15 84% 34-9/16 10.1 300 AP-690U 1.10 140 129 114 6 8x8 15 84% 41 16.3 340 AP-790U 1.