This revolutionary designed unit is available in both natural gas and liquid propane it vents in inexpensive pvc, cpvc, or polypropylene. Click here to visit our partner company for all of your restoration needs! All drain surveys are carried out by our team of industry professionals who are fully trained and able to carry out all types of domestic and commercial types of jobs. What did you do to get it working then? We work with some of the uk’s biggest boiler manufacturers.