Agentis Internal Combi

The UK & Ireland’s only AAA rated oil boiler saving homeowners up to 5ltrs of fuel per weeks compared to other leading combi oil boiler brands.

The Warmflow Agentis internal combination uses Warmflow’s unique patented stainless steel heat exchanger alongside the latest Riello Low NOx burner technology to offer customers unparalleled efficiency and ease of installation. The Agentis combi includes a number of innovation, market leading options such as a factory fitted 24ltr hinged expansion vessel, a factory fitted pressure relief and reducing valve and a factory fitted DHW mini expansion vessel.

Boiler Stats

Models 121C 126C 133C
Models 121C 126C 133C
Output (kW) 15-21 21-27 27-33
Flue Options C/F, low/ high/ vertical B/F C/F, low/ high/ vertical B/F C/F, low/ high/ vertical B/F
C/F size (mm) 100 100 100
ErP Heating Rating rating rating rating
ErP Water Rating rating rating rating
Height (mm) 865 865 865
Depth (mm) 602 602 602
Width (mm) 515 515 515
Flow Connection 22mm 22mm 22/28mm
Return Connection 22mm 22mm 22/28mm
Service Access front/top front/top front/top
DHW Flow (I/min) 18 22* 24*
WFP

The next generation of oil boilers

  • Teddington fire valve with 9m capillary
  • Oil line installation kit with a Crossland oil filter
  • ADEY Magnaclean pro 2 filter
  • Pre Wired Grundfos UPM3 Flex AS Circulating Pump
  • Includes 2 Bottles of Inhibitor

Explore other models

Agentis Internal Heat Only

I21 / I26 / I33 / I44
  • Warmflow’s unique, patented 5mm stainless steel heat exchanger technology
  • Latest Riello low NOx burner
  • Stylish white casing suitable for all indoor installations
  • Outputs ranging from 15-44kW
  • Quiet operation
  • Extended warranty for Warmflow Connect installers (subject to ts & cs)
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Agentis Internal Pumped

I21 P / I26 P / I33 P / I44 P
  • Warmflow’s unique, patented 5mm stainless steel heat exchanger technology
  • Latest Riello low NOx burner
  • Factory fitted Grundfos UPM3 FLEX AS circulating pump
  • Stylish white casing suitable for all indoor installations
  • Outputs ranging from 15-44kW
  • Quiet operation
  • Extended warranty for Warmflow Connect installers (subject to ts & cs)
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Agentis Internal System

I21 S / I26 S / I33 S
  • Warmflow’s unique, patented 5mm stainless steel heat exchanger technology
  • Latest Riello low NOx burner
  • Factory fitted Grundfos UPM3 FLEX AS circulating pump
  • Factory fitted sealed system including 12ltr rectangular expansion vessel for more space within the appliance.
  • Stylish white casing suitable for all indoor installations
  • Outputs ranging from 15-33kW
  • Quiet operation
  • Extended warranty for Warmflow Connect installers (subject to ts & cs)
View boiler details