Blocked drain - drain repair - cctv survey drain clearance - high-pressure jetting. We are fully insured heating and cooling professionals! Baxi luna condensing boilers have a compact design and are suitable for indoor and outdoor installations. Makes removing stains and odor simple! Produce heat/steam at night and use it during the day. How do i use drain out bathroom in a regular bathtub, sink or shower drain? For all other faults, please use the form below.