Beacon-Morris® TWIN-FLO III® K-42 Hydronic Kickspace HeaterBeacon-Morris® TWIN-FLO III® K-42 Hydronic Kickspace Heater
Beacon-Morris® TWIN-FLO III® K-42 Hydronic Kickspace Heater
Beacon-MorrisSKU: 41876

Beacon-Morris® TWIN-FLO III® K-42 Hydronic Kickspace Heater

$232.94
In stock (63)

Make the most of unused kickspace in kitchens, bathrooms, and tight quarters with the Beacon Morris TWIN-FLO III Hydronic Kickspace Heater. Designed for forced hot water residential heating systems, this compact unit houses a copper tube, aluminum-finned heating element paired with a cross-flow blower motor that delivers a quiet, comfortable stream of warm air at floor level — right where it's needed most. At just 4" tall, 12-1/4" wide, and 12-3/4" deep, it fits neatly into standard toe-kick spaces with minimal modification. Output ranges from 1,480 to 5,240 BTU/hr depending on water flow and temperature.

Shipping policy

Orders placed by 2:00pm EST will ship same day, except on holidays.

More Details

Product overview
  • Kickspace heaters are the space-saving alternative to hot water baseboard
  • The type K heater is primarily used in horizontal floor installation, for example under a kitchen counter cabinet, or bathroom sink enclosure
  • They are ideal for radiant systems with the use of a low temperature aquastat designed to turn the unit on at 110 deg F
  • Type W is for vertical mounting, fully recessed in the wall studs, with the air discharged upward through a flush mounted, louvered front panel
  • Type F is a surface mounted wall unit, with the air discharged evenly through a louvered front panel in an upward direction
  • All types have heating elements with 1/2 in nominal (5/8 in O.D) copper tube connections and 115 V
  • Electric blower motor, interwired with a 120 deg F (49 deg C) reverse acting aquastat that prevents operation until hot water is circulating
  • These units are NOT intended to be used on one or two pipe steam systems
  • For gravity fed systems, it is recommended that a separate circulator pump be installed for the kickspace heater
  • Designed to fit inconspicuously under a cabinet, in the floor, on or in the wall
  • Hot water from the home's boiler is circulated through the kickspace unit and the fan gently blows heated air into the room
  • The homeowner simply selects the fan speed, then the unit turns on and off automatically according to heating demand
  • 53 cfm high speed
  • 3200 rpm
  • 0.034 hp motor
  • 30.7 watt
Specifications
Manufacturer Part Number K-42
UPC 700201000167
Overall Dimensions 4"H x 12-1/4"W x 12-3/4"D
Material n/a
Domestic or Import n/a
End Style n/a
Type n/a
ADA Compliance n/a
Warning n/a
Standards and Approvals cETLus Listed
Resources
Delivery & Returns

Orders will ship same day if received by 2pm EST.

Upcoming holiday closures: May 25, 2026

All returns are inspected on receipt; credit is issued after condition is confirmed. Credit is issued only for items returned in original, saleable condition after inspection.

FINAL SALE ITEMS ARE NOT ELIGIBLE FOR RETURNS OR EXCHANGES.

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