High Altitude Data Sheet

The Aspen boiler is an ENERGY STAR
®
rated high efficency
condensing boiler that is not subject to the same de-rate as
many other 10:1 boilers installed at high altitudes. You can pay
less for an Aspen boiler instead of paying more for a larger
boiler that must compensate more for altitude losses.
FACTS
• EasytoadjustAspenaltitudecontrolsettingsonallstandardboilersviaSage2.3touchscreeninterface
• Alwayssuperiorde-ratescomparedtonominalindustryrecognizedderateof4%per1000feet.
 – MostAspenderatesarelessthan2%per1,000feet
• TheAspenprovidesefficiencyandTRUEcapacitywithoutexpensiveandinefficientoversizing
• Ifyourinstallationcallsfora101MBHboilerat7,800feet,youcanbuyaASPN-110.Togetthesameinput
fromacompetitiveboiler,youmayneedtobuyamoreexpensive155MBHboiler,de-ratedtoapproximately
131MBH(oversized)
 – Oversizedboilersarepronetoshort-cyclingandhigherfuelusageatlowfire
Aspen Ratings
Model
Rated
Input
(MBH)
Approximate Boiler Rating at Max Altitude (MBH)
2,001’ to 6,000’ 6,001’ to 7,800’ 7,801’ to 10,100 ’
Natural Gas LP Gas Natural Gas LP Gas Natural Gas LP Gas
ASPN-085 85 85 85 83 83 76 77
ASPN-110 110 110 105 101 93 92 82
ASPN-155
ASPNC-155
155 134 144 119 132 102 121
ASPN-205 205 169 169 159 159 145 145
ASPN-270 270 270 238 238 207 213 165
ANYWHERE
UNMATCHED
ETLlisted
Configurationmustberesetontheboilercontrol
touchscreenattimeofinstallation.Installing
techniciansmustfollowinstructionsincluding
combustionanalysisinI&Omanualandrelated
supplements
Greenshading=2%orlessde-rateper1,000feet
EXAMPLE
See how the Aspen’s high altitude
performance lets you buy a less
expensive, appropriately-sized boiler!
High Altitude
AT NO “EXTRA CHARGE”