Hydronic Unit Heaters

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Dayton hydronic unit heaters are designed for utilising non-potable hot water or steam produced by an indirect water heater or a boiler. These hydronic unit heaters are used in warehouses,...Read more

DAYTON -

Horizontal Hydronic Unit Heaters, Water Or Steam Heating

Dayton horizontal hydronic unit heaters mount on walls for heating large areas, commercial and industrial spaces. These heaters feature threaded female NPT connections for the supply of water or steam to heat the air and have fans to push & spread the heated air horizontally. They come with adjustable louvres for controlling the direction of airflow. Selected models allow vertical mountingon the ceiling to push the heated air downward towards the floor. Choose from a wide range of these heaters, available in airflow speeds ranging from 395 to 5500 cfm.

StyleModelOutput @ 2 Psi SteamDepthHeightMax. Operating PressureMotor HpMounting HeightCoil TypeMax. Operating Temp.Price
A5PV3118000 btuH9 3/8"15"150 psi1 1/2 hp8 ft.Header320°F€957.87
A3DUF724000 btuH9 3/8"18"150 psi1/12 hp8 ft.Header355°F€1,194.94
A5PV4336000 btuH9 3/8"18"150 psi1/2 hp9 ft.Header320°F€1,255.52
A5PV4648000 btuH11"-150 psi16 W9 ft.Header320°F€1,460.86
A5PV4860000 btuH10 15/16"20 1/2"150 psi1/4 hp10 ft.Header320°F€1,666.81
A5PV4760000 btuH10 15/16"20 1/2"150 psi1/20 hp10 ft.Header320°F€1,560.95
A5PV4972000 btuH11 1/16"21 3/4"150 psi1/20 hp10 ft.Header320°F€1,626.24
A5PV5072000 btuH11 1/16"21 3/4"150 psi1/20 hp10 ft.Header320°F€1,754.64
A5PV5184000 btuH11 13/16"24 1/4"150 psi1/12 hp10 ft.Header320°F€1,835.84
A5YH2084000 btuH11 13/16"24 1/4"150 psi1/3 hp10 ft.Header320°F€1,691.63
A5PV5296000 btuH13 13/16"24"150 psi1/3 hp11 ft.Header320°F€2,010.28
A5PV5396000 btuH13 13/16"24"150 psi1/20 hp11 ft.Header320°F€2,138.66
A5PV16108000 btuH13 13/16"24"150 psi1/12 hp11 ft.Header320°F€2,673.78
A5PV15108000 btuH13 13/16"24"150 psi1/3 hp11 ft.Header320°F€2,070.97
A5PV20120000 btuH13"25 1/4"150 psi1/3 hp12 ft.Header320°F€2,426.76
A5YH19120000 btuH13"25 1/4"150 psi1/3 hp12 ft.Header320°F€2,252.49
A5PV24132000 btuH14"27 3/4"150 psi1/6 hp13 ft.Header320°F€2,676.47
A5PV23132000 btuH14"27 3/4"150 psi1/8 hp13 ft.Header320°F€2,502.20
A5PV27144000 btuH14"27 3/4"150 psi1/3 hp13 ft.Header320°F€2,601.19
A5PV28144000 btuH14"27 3/4"150 psi1/3 hp13 ft.Header320°F€2,833.54
A5PV29156000 btuH13 3/4"27 3/4"150 psi333/1000 hp13 ft.Header320°F€2,770.96
A5PV30156000 btuH13 3/4"27 3/4"150 psi1/3 hp13 ft.Header320°F€2,945.23
A5PV32180000 btuH13 3/4"29"150 psi1/3 hp13 ft.Header320°F€2,954.36
A5PV33180000 btuH13 3/4"29"150 psi333/1000 hp13 ft.Header320°F€3,128.66
A5PV34204000 btuH13 3/4"29"75 psi333/1000 hp13 ft.Header320°F€3,404.40
DAYTON -

Suspended Horizontal Hydronic Wall & Ceiling Unit Heaters

Dayton suspended horizontal hydronic heaters provide primary or supplementary heating by pushing and spreading the heated air. They are suspended from a wall or ceiling to spread the air evenly. These units store water which is then heated by passing a current through serpentine coils and circulated with a maximum rate of 150 PSI. They feature a totally enclosed motor which is capable of producing a maximum power output of 25W. They are ETL & ETLc listed and comply with OSHA standards for safe use. Choose from a wide range of these heaters, available in 245, 500, 580 and 850 CFM airflow ratings on Raptor Supplies.

StyleModelHeightDepthMax. Operating PressureMotor HpMounting HeightOutput @ 200 Deg. F WaterPowerMax. Operating Temp.Price
A5PV1916"9 1/2"150 psi16 W8 ft.18400 btuH16 W320°F€1,082.09
A5PV2216"9 1/2"150 psi1/2 hp9 ft.24800 btuH25 W320°F€1,191.89
A5YH1816"9 1/2"150 psi1/12 hp8 ft.8030 btuH16 W320°F€1,005.24
A5PV2618 1/2"10 15/16"150 psi1/12 hp9 ft.35900 btuH-320°F€1,440.31
DAYTON -

Suspended Vertical Hydronic Wall & Ceiling Unit Heaters

Dayton suspended vertical hydronic heater units provide primary or supplementary heating by pushing and spreading the heated air. They are suspended from a wall or ceiling to spread the air evenly. These units store water, which is then heated by passing a current through rectangular coils and circulated with a maximum rate of 75 PSI. They feature a totally enclosed motor capable of producing a maximum power output of 3 HP. The heater units are ETL & ETLc listed and complies with OSHA standards for safe use. Choose from a wide range of unit heaters, available in single and three phase variants on Raptor Supplies.

StyleModelOutput @ 2 Psi SteamHeightDepthMotor HpMounting HeightPhaseOutput @ 200 Deg. F WaterMax. Operating PressurePrice
A5PV6341300 btuH10 5/8"18 1/4"1/40 hp11 ft.122700 btuH75 psi€1,403.12
A5PV6665500 btuH11 1/8"21 1/4"1/2 hp12 ft.139600 btuH75 psi€1,457.26
A5PV6880600 btuH11 5/8"21 1/4"1/4 hp15 ft.148400 btuH75 psi€1,794.09
A5PV54101800 btuH12 1/8"25 1/4"1/2 hp14 ft.168300 btuH75 psi€1,861.62
A5PV55124400 btuH12 3/4"25 1/4"1/20 hp16 ft.183700 btuH75 psi€2,074.55
A5PV56152000 btuH13 5/8"29 1/2"1/3 hp16 ft.1105200 btuH75 psi€2,229.67
A5PV57173000 btuH14 1/8"29 1/2"1/3 hp18 ft.1118600 btuH75 psi€2,330.05
A5PV59249800 btuH15 1/8"37 1/2"1/4 hp20 ft.1180100 btuH75 psi€4,021.09
A5PV60283800 btuH15 1/4"37 1/2"1/2 hp21 ft.1205400 btuH75 psi€4,194.74
A5PV61333400 btuH16 3/4"37 1/2"1/20 hp24 ft.3242900 btuH75 psi€4,571.38
A5PV62386000 btuH17 5/8"37 1/2"1/20 hp28 ft.3280800 btuH75 psi€5,268.56
A5PV64496000 btuH17 1/4"42"1/2 hp29 ft.3368100 btuH75 psi€7,462.40
A5PV65585000 btuH20 3/4"42"3/4 hp34 ft.3431100 btuH75 psi€9,196.51
A5PV67705000 btuH24 1/4"42"3 hp38 ft.3519400 btuH75 psi€10,325.95

Hydronic Unit Heaters

Hydronic unit heaters utilize non-potable hot water or steam produced by a boiler, indirect water heater. Dayton heaters save floor space and are therefore commonly used in large areas like manufacturing facilities, warehouses and garages. These heaters are capable of pushing heated air horizontally and vertically and spread it across a larger area. Choose from a broad range of these Dayton hydronic heating units, available in 11000 cfm, 500 cfm, 450 cfm, 395 cfm and 245 cfm air flow options.

Working Mechanism

  • Hot water is produced by a central boiler for heating the water to the required temperature.
  • The hot water is then circulated through a series of heating coils / radiators within the unit heater.
  • The heat from the hot water is then transferred to the surrounding air through the heating coils.
  • A fan or blower inside the unit heater circulates the warm air into the heated space.
  • The cooled water then returns to the central boiler for reheating and the cycle repeats.
  • The temperature of the hot water is then controlled by adjusting the temperature setting on the central boiler and the amount of heat produced by the unit heater can be adjusted by controlling the flow of hot water through the heating coils or radiators.

Frequently Asked Questions

What is the flow rate of Dayton hydronic unit heaters?

The flow rate of these heaters range from 245 to 11000 cfm.

What safety precautions should be taken when using hydronic unit heaters?

  • Get the system installed by a qualified technician.
  • Inspect the central boiler regularly and maintain it to ensure safe operation.

What is the role of a thermostat in hydronic unit heaters?

The thermostat controls the temperature of the hot water and the rate of heat transfer. The thermostat is set to the desired temperature and will turn the unit on and off as needed to maintain the required temperature.