®
RATINGS CHART – GAS BOILERS
GALAXY GX (H), GXHA SERIES
©Slant/Fin Corp. 2007
GXHA-100 100,000 — 81,000 — — 61,000 254 2
1
/
2
GXH-105 105,000 86,000 — 495 75,000 — — 2
1
/
2
GXHA-120 120,000 — 97,000 — — 73,000 304 3
GXH-125 126,000 104,000 — 600 90,000 — — 3
GXH-150 147,000 120,000 — 695 104,000 — — 3
1
/
4
GXHA-160 160,000 — 130,000 — — 98,000 408 3
1
/
2
GXH-170 168,000 137,000 — 795 119,000 — — 3
1
/
2
GXH-190 189,000 155,000 — 895 135,000 — — 3
3
/
4
GXHA-200 200,000 — 163,000 — — 122,000 508 4
GXH-210 210,000 172,000 — 995 150,000 — — 4
GX-225 225,000 184,000 — 1065 160,000 — — 4
GXH-230 231,000 189,000 189,000 1095 164,000 142,000 591 4
1
/
4
GX-250 250,000 204,000 — 1180 177,400 — — 4
1
/
2
GXH-250 252,000 206,000 206,000 1195 179,000 155,000 646 4
1
/
2
GXH-275 273,000 223,000 223,000 1290 194,000 167,000 696 5
GXH-300 300,000 240,000** 240,000 ** 1395 209,000 180,000 750 5
1
/
2
GXH-300H§ 300,000 243,000** 243,000 ** 1405 211,000 182,000 758 5
1
/
2
MODEL
NUMBER †
CSA
INPUT
(Btuh)
D.O.E.
CAPACITY
WATER
(Btuh)
D.O.E.
CAPACITY
STEAM
(Btuh)
WATER
(Sq.Ft.)
WATER
(Btuh)
STEAM
(Btuh)
STEAM
(Sq.Ft.)
TANKLESS
HEATER
CAPACITY
(G.P.M.)‡
RATINGS STEAM OR WATER
NET I=B=R*
EFFICIENCY
GALAXY DOE SEASONAL
EFFICIENCY (AFUE)*
GXH-105 ED 81.00
GXH-125 ED 81.00
GXH-150 ED 81.14
GXH-170 ED 81.14
GXH-190 ED 81.14
GXH-210 ED 81.17
GX-225 ED 81.30
GXH-230 ED 81.21
GX-250 ED 80.70
GXH-250 ED 81.24
GXH-275 ED 81.28
GXHA-100 ED 81.00
GXHA-120 ED 81.20
GXHA-160 ED 81.20
GXHA-200 ED 81.30
MODEL
Natural and L.P. Propane Gas
±
GG models:
Add suffix
“S”
for standard water boiler, “P” for
pac
kaged water boiler. Add suffix “E” for intermittent pilot igni-
tion system (a
v
ailab
le only with 24 v
olt gas v
alve). Type of
gas: After model number, specify gas by name “Natural” or
“Propane”
* Net ratings are based on a piping and pick-up allowance of
1.33 (steam) and 1.15 (hot water). Slant/Fin should be con-
sulted before selecting a boiler for installation having
unusual piping and pick-up requirements. Ratings must
be reduced by 4% at 2,000 feet elevation and an addition
al 4% for every additional 1,000 feet elevation over 2,000
feet.
†
GXH and GX models: Add suffix “PT” for standard water
boiler with tankless heater
,
“PZ”
f
or steam boiler
, “PZT” for
packaged steam boiler with tankless heater. Add suffix “E”
f
or inter
mittent pilot ignition system (a
v
ailable only with 24
v
olt gas v
alve). Type of gas: After model number, specify
gas by name “Natural” or “Propane”.
** CSA output rating (Btuh).
§ Ratings for GXH-300H are for natural gas only.
‡ Tankless heater ratings based on intermittent draw.
NOTE: All boilers under 300,000 Btu input are tested and
rated for capacity under the U.S. Dept. of Energy (D.O.E.)
Test Procedure for boilers.
* Includes intermittent pilot and
vent damper. Annual Fuel
Utilization Efficiency based on
constant circulation for hot
water models.
SLANT/FIN CORPORATION, Greenvale, NY 11548 • Phone: (516) 484-2600
FAX: (516) 484-5921 • In Canada: Slant/Fin LTD/LTEE, Mississauga, Ontario
www.slantfin.com
DISCONTINUED MODEL
NOTE: GXH-230 (WATER MODEL DISCONTINUED ONLY)
STEAM MODELS ARE AVAILABLE
