Burnham MST629, MST513, MST396, MST288 User Manual

86% High Efficiency Oil-fired Steam Boiler

• High Efficiency 86% AFUE

• New, Unique, Burnham

Engineered 3-Pass Design

• 4 Sizes Available

• 288 - 629 sq. ft. of steam

• 0.75 - 1.65 GPH

• High Corrosion Resistance

with Extended Waterside Warranty

• Superior Steam Quality

• Tankless Heater Available

• Best Steam Boiler

Warranty in the Industry

Burnham MegaSteam™
High Efficiency Oil-fired Steam Boiler

Unique 3-Pass Cast Iron Design

The MegaSteam boiler has been exclusively
designed by Burnham engineers using a
3-pass, cast iron, sectional design that is
unequaled in the industry. MegaSteam
sections are produced in Burnham’s own
state-of-the-art foundry, and at 86% AFUE,
MegaSteam boilers are ENERGY STAR®
certified as the most efficient oil-fired
steam boilers available.

Superior Steam Quality

The MegaSteam 3-pass design helps produce
high quality 99% dry steam with low moisture
content while offering a high degree of
corrosion resistance. This outstanding steam
quality is incomparable in the industry and allows
MegaSteam boilers to outperform competitive
products in older steam applications where
steam quality is critical.

Expanded Product Warranty

In addition to Burnham’s standard limited 10-year warranty on the cast iron heat
exchanger, Burnham warrants each MegaSteam boiler for 5 years against waterside
corrosion, a common failure mechanism in steam boilers. The boiler’s unique 3-pass
design is instrumental in providing this important advantage.

MegaSteam’s expanded corrosion warranty is unmatched in the industry.

Benefits of Installing a MegaSteam

Easy to Install, Maintain, and Service

From installation to servicing, Burnham’s MegaSteam boilers have been designed
with the contractor in mind. Installation features include a plug-and-play junction
box with easy plug-in accessory connections and a reversible swing-away door with
an easy connect power cord. For maintenance and servicing, MegaSteam boilers
have removeable stainless steel flueway baffles, rear flue cleanout plates and plenty
of room in the flueways for easy and efficient cleaning.

Optional Winter Warmth Assurance Program

The cast iron heat exchangers on MegaSteam boilers are covered by Burnham
Hydronics standard limited 10-year manufacturers warranty as well as Burnham’s
unique 5-year protection against waterside corrosion on every MegaSteam boiler.
With the purchase of an optional Burnham Winter Warmth Assurance Plan, a
MegaSteam boiler can also include additional coverage on the boiler, boiler
components, and labor. This program pays up to 100% for the parts and labor on
qualified repairs and covered parts for either 5 or 10 years from the date of installation.

3-inch jacket insulation
minimizes heat loss

Readily available controls:

•

Honeywell Pressuretrol

•

Hydrolevel CG450 LWCO

Reversible, swing-away
cast iron door

MegaSteam Boiler

Model MST

Junction Box with plug-in
accessory
connections

MegaSteam Rear View

Rear flue outlet provides
additional space for
installing steam boiler
piping

MegaSteam boiler models are
available with 222A tankless
heater option, or for even more
domestic hot water, use a
Burnham Alliance SL indirect
fired water heater.

Industry recognized
Beckett AFG burner
with cover

Burnham Alliance SL™

Indirect-fired Water Heaters

For an abundant supply of domestic hot water, be sure to use an Burnham
Alliance SL indirect-fired water heater with every boiler application.

The Alliance SL water heaters are designed with an
effective hydrastone lining that offers superior
corrosion resistance and outstanding performance in
a wide variety of water conditions.

Water heaters are available in five sizes and come with
a unique 10/2/1 warranty – 10 years on the tank and
coil, 2 years labor and 1 year on parts.

Dual, easy access
cleanout plates for
cleaning flueways

Ratings

Burner

Firing Rate DOE

Heating

Boiler

Model
MST288 0.75 105 92 69 288 6 6 8 x 8 15 86.0 15.3
MST396 1.05 147 127 96 396 6 6 8 x 8 15 86.0 15.3
MST513 1.35 189 164 123 513 6 6 8 x 8 15 86.0 19.7
MST629 1.65 231 201 151 629 7 7 8 x 8 15 86.0 24.1

Notes: Maximum Working Pressure: 15 PSI Steam

1. The I=B=R Burner Capacity is based on oil having Higher Heating Value of 140, 000 BTU/Gal.

2. DOE Heating Capacity and Annual Fuel Utilization Efficiency (AFUE) are based on US Government tests at 13.0% CO2 with No. 1 maximum smoke and 0.00” draft in
the breach on standard equipment package.

3. Net I=B=R Ratings are based upon pick-up allowance of 1.333. Consult manufacturer with unusual piping and pickup requirements before selecting boiler.

4. Used for sizing flue connection materials.

1

Capacity

MBH

2

I=B=R Net

Ratings Flue

Steam
MBH

Steam

3

Sq. Ft.

Collar
Diam.

Inches

4

Minimum Chimney

Requirements

Round

In. Diam.

Rectangle

In. x In.

Height

Feet

AFUE %

Water
Content
(Heater)

to NWL
GallonsGPH MBH

Optional Tankless Heater Ratings

*222A Tankless Heater

Boiler

Model
MST288 3.00 22.0
MST396 3.25 24.3
MST513 3.50 26.5
MST629 4.00 31.0

Rating GPM Pressure Drop PSI

Notes:

1. Tankless Heater Rating, GPM is based on 100 F temperature rise with
40 F inlet water (intermittent draw) with boiler water temperature of 190°F.

Dimensions

Boiler

Model ‘A’ ‘B’ ‘C’ ‘D’
MST288 22-5/8 24 6 35-15/16
MST396 22-5/8 24 6 35-15/16
MST513 28-5/8 30 6 35-15/16
MST629 34-5/8 36 7 35-15/16

Form No. PL81401302000-2/07-20Mss

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© 2007 U.S. Boiler Company, Inc. - Lancaster, PA

Phone: [phone] Printed in the U.S.A.