Alpha Tryon MK

ALPHA TRYON from ELCO UKĀ is a range of cast iron sectional, horizontal 3 pass boilers with unique Jetstream Technology, allowing operation at continuous low return temperature without the need for back end temperature protection. This (patent pending) feature makes the boilers ideally suited to low operational water temperature systems such as underfloor coils – even with oil fired installations.

There are 19 models, spanning from 436 to 1,017kW, all with easy clean from the front access flueways. Heavy duty cleaning tools are provided as standard.

  • Large range of outputs
  • Operation at low return water temperatures
  • Simplified installation
  • Warranty against material or manufacturing defects
  • Suitable for use with ELCO VECTRON range of burners
  • Robust and reliable
  • Resistant to thermal shock
Model MK436MK494MK552MK661
Nominal heat outputkW436494552611
Nominal heat input (gross)kW531.6602.6673.6744.7
Nominal heat input (net)kW479.0543.0607.0671.0
Weight empty/fullkg1868/21432049/23512206/25362365/2723
Boiler seasonal efficiency* (gas fired) (gross)%83.1783.1783.1783.17
Boiler seasonal efficiency* (oil fired) (gross)%86.2186.2186.2186.21
Model MK669MK727MK785MK843MK901MK959MK1017
Nominal heat outputkW6697277858439019591017
Nominal heat input (gross)kW815.7886.7957.81027.71098.71169.81204.8
Nominal heat input (net)kW735.0799.0863.0926.0990.01054.01118.0
Weight empty/fullkg2533/29192702/31152857/32983015/34843172/36683331/38553489/4041
Boiler seasonal efficiency* (gas fired) (gross)%83.1783.1783.1783.1783.1783.1785.8
Boiler seasonal efficiency* (oil fired) (gross)%86.2186.2186.2186.2186.2186.2194.3

*Calculated using the formula given in Equation 2 in the Non-Domestic Building Services Compliance Guide