Installation of a new Vaillant ecotech 637 condensing boiler.

---

Size: 3744px × 5616px
Location: UK
Photo credit: © Beepstock / Alamy / Afripics
License: Licensed
Model Released: Yes

Keywords: 637, assisted, board, boiler, build, building, central, circuit, condensing, control, copper, domestic, driver, ecotech, electrical, employment, fan, fitter, fitting, flue, gas, government, heating, household, hung, installation, installed, male, man, person, pipe, pipes, plaster, plumbers, plumbing, renovation, room, scheme, scrappage, screw, sealed, system, technical, technician, trade, trades, vaillant, wall, wiring, work