Engineers & Manufacturers of the Heatsponge Economizer

 1-866-666-8977

Engineering Information on HeatSponge Economizer

 

Heatsponge manufacturers four types of rectangular units: the BOSS Base-Line Recovery Unit, MAGNUM Mid-Range Recovery Unit, the SUPER High Recovery Unit, and the the TITAN for very large boiler applications. These units feature identical construction with the only difference being the arrangement of the tubes inside of the unit. The BOSS unit features a longer effective length tube circuit with fewer rows in depth. The SUPER Recovery unit features a shorter effective length and increased tube depth. This requires more tubes in unit width to maintain the same gas side pressure drop across the bundle. The end result is more tubes, therefore more heating surface in the SUPER unit. The MAGNUM fits in between the BOSS and SUPER providing better energy recovery at mid level pricing. The TITAN utilizes a double-tube element per circuit to accomodate large gas and water flow rates without excessive pressure loss and is primarily used on larger firetube and watertube boilers.

 

All Heatsponge BOSS, MAGNUM, SUPER, and TITAN Economizers Feature As A Standard:

Computerized rating performance

 

ASME Section VIII Construction Standard (Section I available contact us)

 

600 psig design pressure at 700 deg F design temperature

- 600 psig design pressure at 600 deg F design temperature for duplex applications

 

One-piece casing construction provides strength and easy installation

 

Integral inlet and outlet transition pieces

 

Integrated stack adapter flanges included as a standard

 

Individually removable finned tube elements

 

    > Unit utilizes a true square-pitch tube arrangement and not a triangular, staggered, or coiled arrangement

    > SA-178-A/SA-214 carbon steel tube with carbon steel fin for deaerated water application

    > Type 304 Stainless steel tubes with stainless steel fins for cold water or non-deaerated water applications

       (We reserve the right to upgrade to 316 stainless steel tubes at no change in price based on material availability

    > Type 2205 Duplex stainless with stainless steel fins for cold water or non-deaerated water applications

    > All units feature 0.75" OD tubing, 0.060 min wall for carbon steel, 0.049 ave wall for stainless

    > Fin pitch either 2, 3, 4, 5, or 6 per inch, 0.040" thick, 0.500" tall

       - 6 fins for gas only firing - 5 fins for gas firing with #2 oil firing less than one week per year

       - 4 fins for consistent #2 oil firing - 3 fins for #6 oil firing - 2 fins for wood or other solid fuel firing

    > All units utilize compression fittings to connect tubes to headers

    > The fittings are threaded into the headers so there are NO ASME PRESSURE PART WELDS in our system

 

 

Insulated, bolted removable rear door

 

Outer casing fully insulated with 2 inches mineral wool insulation

 

Units provided with outer lagging factory installed

 

Headers factory threaded or flanged per proposal

 

Unit is 100% drainable by gravity in either vertical or horizontal installation

 

Supply of an ASME Safety Relief Valve set at 250 psig as standard (other pressures may incur price change)

 

 

For smaller boilers around 300 HP or smaller HeatSponge offers the very high quality SHORTY coiled-tube economizer. This unit utilizes a stainless steel tube in a stainless steel casing.

 

 

 

The Heatsponge SHORTY Model Economizers Feature As A Standard:

 

Computerized rating performance

 

ASME Section VIII Construction Standard (Section I available contact us)

 

All units utilize compression fittings to connect tubes to headers - this is an industry leading repairable coiled design

 

450 psig design pressure at 600 deg F design temperature

 

One-piece casing construction provides strength and easy installation

 

Integral inlet and outlet transition pieces

 

Integrated stack adapter flanges included as a standard

 

Individually removable coiled finned tube elements

 

    > Base: Type 304 Stainless steel tubes with stainless steel fins for cold water or non-deaerated water applications

       - We reserve the right to upgrade to 316 stainless steel tubes at no change in price based on material availability)

    > Type 2205 Duplex stainless with stainless steel fins for cold water or non-deaerated water applications

    > All units feature 0.75" OD tubing 0.049 ave wall

    > Fin pitch either 4, 5, or 6 per inch, 0.040" thick, 0.500" tall

       - 6 fins for gas only firing - 5 fins for gas firing with #2 oil firing less than one week per year

       - 4 fins for consistent #2 oil firing

 

 Insulated, bolted removable rear door

 - Simply unbolt the rear door with the boiler offline and use a hose for quick and easy periodic cleaning

 

Outer casing fully insulated with 2 inch mineral wool insulation

 

Units provided with outer lagging factory installed

 

Unit is 100% drainable by gravity in vertical installation

 

Supply of an ASME Safety Relief Valve set at 250 psig as standard (other pressures may incur price change)

 

The Heatsponge SIDEKICK Model Economizers Feature As A Standard:

Computerized rating performance

 

ASME Section VIII Construction

 

Full stainless steel internal construction

 

Lower stainless steel sump to collect condensation

 

Staggered tube pitch for maximum effectiveness in condensing applications

 

450 psi design pressure at 600 deg F design temperature

 

One-piece casing construction provides strength and easy installation

 

Integral inlet and outlet transition pieces

 

Integrated stack adapter flanges included as a standard

 

Type 304 Stainless steel tube with stainless steel fins

- We reserve the right to upgrade to 316 stainless steel tubes at no change in price based on material availability

    > 0.75" OD tubing, 0.049 ave wall

    > Fin pitch of 6 per inch, 0.040" thick, 0.500" tall

 

Insulated, bolted upper and lower access panels

- Simply unbolt with the boiler offline and use a hose for quick and easy periodic cleaning

 

Outer casing fully insulated with 2 inch mineral wool insulation

 

Units provided with outer lagging factory installed

 

Headers factory threaded or flanged per proposal

 

Unit is 100% drainable by gravity in vertical installation

 

Supply of an ASME Safety Relief Valve set at 250 psig as standard (other pressures may incur price change

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Boilerroom Equipment, Inc. division of Thermal Energy International Copyright 2018. All rights reserved.

Boilerroom Equipment, Inc.

2081 Borland Farm Road

Suite B

Export, PA 15632

1.866.666.8977