Juniper® SS XL

The Juniper SS XL hot water calorifier is available as either a single coil or twin coil, both of which utilise double spiral stainless steel construction.

The calorifier is suitable for use with traditional LPHW heating systems and are ideally suited for heat pump systems providing a continuous output up to 3159L/h . The calorifier capacities range from 200-1000 litres.

Single Coil

Stainless steel single coil. Available in a range of 5 models from 200-1000 litres.

Twin Coil

Stainless steel twin coil. Available in a range of 5 models from 200-1000 litres.

  • 200-1000 litre capacity

  • 10 calorifier models

  • Unvented kits

  • Cathode protection

  • Optional electrical element (3kW single phase)

  • Energy Efficiency Class B & C

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Technical Data
2003005008001000
Nominal storage capacitylitres191293503759902
Energy classBC
Coil tube Ømm32
Coil surface area1.953.55.56.06.0
Coil maximum operating temperature/pressure°C / bar110 / 12
Tank (secondary) maximum working temperature/pressure°C / bar95 / 6
Weight (empty/full)kg87 / 278108 / 401149 / 652180 / 939224 / 1126
Heat up time at 35°C ΔT (3kW immersion only)hours1.01.11.73.55.2
Immersion heater option (power/phase)kW / ph3 / 1
Standby loss at 65°CkWh/24h1.311.532.152.532.57
Primary flow ratel/s0.8330.4171.1110.5561.3890.6941.670.8331.670.833
m³/hr3.01.54.02.05.02.56.03.06.03.0
Continuous DHW output @ 35°C ΔT (10/45°C) with primary 55°Cl/h510467911834142012961568144115681441
10 minute peak DHW draw off @ 35°C ΔT (10/45°C) with primary 55°C and tank warmed @ 50°Clitres2822774494417547421065105212281216
Recovery time DHW @ 40°C ΔT (10/50°C) full tank without draw off with primary 55°Cminutes41483643414955666578
Nominal heat transferred with primary 55°C and DHW @ 35°C ΔT (10/45°C)kW20.619.036.933.857.452.463.458.263.458.2
Primary hydraulic resistancekPa2.80.87.12.015.44.522.96.622.96.6
Continuous DHW output @ 50°C ΔT (10/60°C) with primary 80°Cl/h68061612091090187316802073187320731873
10 minute peak DHW draw off @ 50°C ΔT (10/60°C) with primary 80°C and tank warmed @ 60°Clitres3032924924728117791100106712431210
Recovery time DHW @ 50°C ΔT (10/60°C) full tank without draw off with primary 80°Cminutes20241821202527333240
Nominal heat transferred with primary 80°C and DHW @ 50°C ΔT (10/60°C)kW39.035.469.362.5107.496.3118.8107.3118.8107.4
Primary hydraulic resistancekPa2.80.87.12.015.44.522.96.622.96.6

Download the brochure to view full technical table.

2003005008001000
Nominal storage capacitylitres191293503759902
Energy classBC
Coil tube Ømm32
Lower coil surface area0.4/0.60.9/11.41.83.0
Upper coil surface area1.41.9/2.43.1/45.06.0
Coil maximum operating temperature/pressure°C / bar110 / 12
Tank (secondary) maximum working temperature/pressure°C / bar90 / 10  /  95 / 695 / 6
Weight (empty/full)kg109 / 300120 / 413161 / 664205 / 964221 / 1123
Heat up time at 35°C ΔT (3kW immersion only)hours1.52.34.16.38.0
Immersion heater option (power/phase)kW / ph3 / 1
Standby loss at 65°CkWh/24h1.311.532.152.532.57
Lower coil primary flow ratel/s0.8330.4171.1110.5561.3890.6941.670.8331.670.833
m³/hr3.01.54.02.05.02.56.03.06.03.0
Continuous DHW output @ 35°C ΔT (10/45°C) with primary 55°C on upper coill/h161151271257382364494471812765
10 minute peak DHW draw off @ 35°C ΔT (10/45°C) with primary 55°C on upper coil and tank warmed @ 50°Clitres3002984644617827791167116314241416
Recovery time DHW @ 40°C ΔT (10/50°C) full tank without draw off with primary 55°C on upper coilminutes125138114124140151163176120134
Nominal heat transferred by upper coil with primary 55°C and DHW @ 35°C ΔT (10/45°C)kW6.66.211.110.515.614.820.119.132.931.0
Upper coil primary flow ratel/s0.8330.4171.1110.5561.3890.6941.670.8331.670.833
m³/hr3.01.54.02.05.02.56.03.06.03.0
Continuous DHW output @ 35°C ΔT (10/45°C) with primary 55°C on upper coill/h37034363759110549741322122415681441
10 minute peak DHW draw off @ 35°C ΔT (10/45°C) with primary 55°C on upper coil and tank warmed @ 50°Clitres190186335327594581795778987966
Recovery time DHW @ 40°C ΔT (10/50°C) full tank without draw off with primary 55°C on upper coilminutes26302731313634403744
Nominal heat transferred by upper coil with primary 55°C and DHW @ 35°C ΔT (10/45°C)kW15.013.925.823.942.739.453.549.563.458.2
Continuous DHW output @ 35°C ΔT (10/45°C) with primary 55°C on lower & upper coill/h531494908848143613381816169523802206
10 minute peak DHW draw off @ 35°C ΔT (10/45°C) with primary 55°C on lower & upper coil and tank warmed @ 50°Clitres490484799788137613601962194124112382
Recovery time DHW @ 40°C ΔT (10/50°C) full tank without draw off with primary 55°C on lower & upper coilminutes151168141155171187197216157178
Nominal heat transferred by lower & upper coil with primary 55°C and DHW @ 35°C ΔT (10/45°C)kW21.620.136.934.458.354.273.668.696.389.2
Primary flow ratel/s0.8330.4171.1110.5561.3890.6941.670.8331.670.833
m³/hr3.01.54.02.05.02.56.03.06.03.0
Lower coil primary hydraulic resistancekPa5.81.63.28.95.91.69.62.713.53.9
Upper coil primary hydraulic resistancekPa11.03.25.51.612.13.520.15.823.46.8
Lower & upper coil primary hydraulic resistancekPa16.84.88.710.518.05.129.78.536.910.7
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