GIA giatsu ROMBO Manuel De L'utilisateur Et D'installation page 48

3. Installation of the flue:
●Flue Duct Installation of Forced-Exhausted Gas Water Heater(B23 ,B53type)
This product is forced exhaust type gas water heater; it can be used only after the flue duct is
installed according to the requirements strictly and can exhaust the waste gas to the outdoor
area. It's not allowed to use the gas water heater without installing the flue duct correctly.
Please follow the below requirements during the installation of flue duct:
(1) Please use the flue supplied by our company, referring to Fig. 11 about the installation
method. If the flue duct is too short, you can extend it aptly. Check the flue duct and see if there is
any damage or leakage every half a year.
(2) The length of the flue duct should be less than 8m
(3) The horizontal distance of the flue duct is the shorter the better. The flue duct end should
have a 2 0 downward inclination (Fig. 11), so as to let the condensing water flows out.
(4) The distance between the flue duct and the combustible materials should be more than
150mm. If the flue duct needs to get through the combustible materials or wall, it should use the
heat shield material to pack the flue duct with the thickness over 20mm. （Refer to Fig.7）
(5) No cement between the flue duct and wall for the convenience of maintenance.
(6) The flue duct should be fixed tightly. The connection part could use self-adhesive foil to avoid
the waste gas going back into the room.
Air inlet hole
(B23 ,B53type)
●Flue Duct Installation of Forced Exhaust & Air-Supply Type Gas Water Heater (C13,C33 type)
This product is a Forced Exhaust & Air-Supply Type gas water heater, it can be used before
exhausting the waste gas to the outdoor according to the strictest requirements. It's not allowed
to use the gas water heater without operating the flue correctly.
(C13 type)
Fig. 11
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(C33 type)