1. Hydrotherm’s NEW KN Series
Condensing Boilers
When They Make CENTS! Beware Of’s Disadvantages Advantages Why Hydrotherm is the Condensing Boiler of Choice!
Hydrotherm’s NEW KN Series

2. 180F 98% 60F 83% When They Make “Cents” $18,000.00 - $ 25,000.00
BUDGET 2000 MBH BOILER:
COPPER FIN 85% - $14,000.00
CAST IRON FD - $ 9,500.00
STEEL FD - $14,500.00
COPPER FIN 82% - $ 9,000.00
ATMOSPHERIC - $ 7,500.00
CONDENSING BOILERS:
$18,
$ 25,000.00
RETURN TEMP
60F
180F
EFFICIENCY
98%
83%
DON’T FORGET HIGH EFFICIENCY MAY MEAN:
SPECIAL VENT MATERIAL
CONDENSATION HANDLING
CONTROL CONSIDERATIONS
ADDITIONAL RADIATION
INCREASED MAINTENANCE
TECHNICALLY DEMANDING SERVICE
PROPRIETARY COMPONENTS
SPECIAL PUMPING OR PRIMARY/SECONDARY PIPING
( NOT ALL CONDENSING BOILER REQUIRE ALL OF THESE CONSIDERATIONS )
When They Make “Cents”
Low Temperature Application 180F – 200F Cannot Afford the Average Condensing Boiler. Savings = Efficiency – First Cost! Carefully Consider All the Additional Installation Cost!

3. Condensing “Beware Of’s”
KNOW THE SYSTEM TEMPERATURE LIMITATIONS
CONDITION OF THE SYSTEM AND WATER (SMALL PASSAGES)
CONVERTING VENT? LINING CHIMNEY? SIDE WALL PLUME AND BRICK DAMAGE?
MULTIPLE BOILERS DON’T ALWAYS NEED HIGH TURNDOWNS.
WILL BACK LOADING MAKE SENSE?
DON’T LOOK AT LITERATURE FOR OUTPUT – CHECK CHART
( NOT ALL CONDENSING BOILER REQUIRE ALL OF THESE CONSIDERATIONS )
MASONRY CHIMNEYS CANNOT HANDLE CONDENSATION
AL29 ABOUT $90 PER FOOT
WATCH HORIZONTAL EQUIV.
MULTIPLE BOILERS AND HOW THEY ARE BREECHED.
CAN BE VERY NOISY.. WHERE IS MECH ROOM LOCATED
VARIES BY MANUFACTURER WATCH YOUR SPECS AND EQUALS!
THROUGH A BRICK WALL IS RISKY BUSINESS!
( NOT ALL CONDENSING BOILER REQUIRE ALL OF THESE CONSIDERATIONS )
NEGATIVE CONDITIONS CAUSE RANDOM HARD TO DETECT LOCKOUTS.
DIRECT CONNECT – BE SURE TO SPEC FACTORY FREEZE PROTECTION.
SIDEWALL – BE SURE TO USE SAME SIDEWALL AS VENT.
INLET AIR PIPE CAN CONDENSE AND DRIP IF NOT INSULATED OR DOUBLE WALL
DON’T COMBINE AIR INLETS
( NOT ALL CONDENSING BOILER REQUIRE ALL OF THESE CONSIDERATIONS )
LOOK FOR PD AND GPM REQUIREMENTS.
LOW FLOW MEANS HIGH DELTA T. WATCH RISE AT HIGHER TEMPERATURES.
PRIMARY SECONDARY MAY BE NEEDED.
( NOT ALL CONDENSING BOILER REQUIRE ALL OF THESE CONSIDERATIONS )
Condensing “Beware Of’s”
GAS REQUIREMENTS CAN BE AS HIGH AS 8” WC. TOUGH IN MANY AREAS OF CLEVELAND AND AKRON.
USE SPECIAL CARE WHEN USING MULTIPLE BOILERS.
ABILITY TO FIRE ALL BOILERS AT VARIOUS CAPABLE FIRING RATES MEANS ‘CAREFUL’ SIZING OF MAIN GAS BRANCH AND GAS DROPS TO BOILER.
( NOT ALL CONDENSING BOILER REQUIRE ALL OF THESE CONSIDERATIONS )
Venting Temperature Rise Gas Pressures Combustion Air Requirement Existing Conditions Be sure to watch your EQUALS! Use disclaimers in Spec!

4. Condensing ADVANTAGES
EFFICIENT TYPICAL SMALL FOOTPRINT EASY RIG SMALL VENTING LOW VOLUME FLEXIBLE INSTALLATION OPTIONS
Condensing ADVANTAGES

5. Condensing DISADVANTAGES
EXPENSIVE TECHNICALLY DEMANDING HIGHLY PROPRIETARY LESS FORGIVING BURNER PULL OFTEN REPS ONLY OPTION VERY NON-STANDARD
Condensing DISADVANTAGES

6. Decide to Choose Condensing / Decide to U se The KN Series
SIMPLE AND EFFECTIVE VERY NON-PROPRIETARY CAST IRON DURABILITY DESIGNED PASSIONATELY BY DEDICATED AND EXPERIENCED ENGINEER NOT FLOW SENSITIVE MANUFACTURER WITH A BACKBONE AND HISTORY OF SUPERIOR SUPPORT COMPARATIVELY SUPERIOR
Decide to Choose Condensing / Decide to U se The KN Series

7. The Competition AERCO KC-1000 Fulton Pulse Lochinvar Intelli-Fin
GasMaster 1M
Buderus SB Series
Viessmann Vertomat
Ajax - Atlas Series
Patterson Kelley MACH
A.O. Smith Legend 2000
The Competition

8. Similarities to Aerco KC1000
BTU High and Low Inputs
Footprint
Vent Size and Category
Control Capability: 4-20ma Linear Signal Response
Flow Rates
Variable Flow
Piping Configurations:
Reverse Return OK.
No need for Primary/Secondary
Similarities to Aerco KC1000

9. Advantages Over Aerco KC1000
KN-10 Fuel-Air Coupling -
Aerco high turndown comes at a cost Sooting and Poor Combustion
Aerco low pressure drop
Limits multiple boilers
Working Gas Pressures
2” w.c. vs 8.5” w.c.
Cast Iron 1/5 Energy Density of Copper
No Altitude De-Rate Necessary
Advantages Over Aerco KC1000

10. Similarities to Fulton Pulse
Variable Flow Rates OK
Piping Configurations
Combustion Turndown
Efficiencies
Similarities to Fulton Pulse

11. Advantages Over Fulton Pulse
Noise Level
No Accessories Required to Minimize Noise and Vibration
Warranty
Operating Weight
Fuel-Air Coupling
Vent Distance (80’ vs 35’)
Footprint