Regency Horizon ® HZ54E-10 Gas Fireplace | 19|19installationEXTERIOR VENT TERMINATION REQUIREMENTSMinimum Clearance Requirements Canada1 USA2A Clearance above grade, veranda, porch, deck, or balcony 12"(30cm) 12"(30cm)B Clearance to window or door that may be opened 12"(30cm) 9" (23cm)C Clearance to permanently closed window * *D Vertical clearance to ventilated soffit located above the terminal within a horizontal distance of 2 feet (61cm)from the center line of the terminal (check with the local code)24"(60cm) 24"(60cm)E Clearance to unventilated soffit 24"(60cm) 24"(60cm)F Clearance to outside corner: with AstroCap Termination Cap. 13"(33cm) 13"(33cm)Clearance to outside corner: with all other approved Termination Caps. 13"(33cm) 13"(33cm)G Clearance to inside corner: with AstroCap Termination Cap 13"(33cm) 13"(33cm)Clearance to inside corner: with all other approved Termination Caps. 13"(33cm) 13"(33cm)H Clearance to each side of center line extended above meter/regulator assembly 36"(90cm)a *J Clearance to service regulator vent outlet 36"(90cm) *K Clearance to non-mechanical air supply inlet to building or the combustion air inlet to any other appliance 12"(30cm) 9" (23cm)L Clearance to a mechanical air supply inlet 72"(1.8m) 36"(90cm)bM Clearance above paved sidewalk or a paved driveway located on public property 84"(2.1m)┼ *N Clearance under veranda, porch, deck, or balcony 12"(30cm)‡ *1 In accordance with current CSA B149.1, Natural Gas and Propane Installation Code2 In accordance with the current ANSI Z223.1/NFPA 54, National Fuel Gas Code┼ A vent shall not terminate directly above a sidewalk or paved driveway which is located between two single family dwellings and serves both dwellings‡ Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the floor* Clearance in accordance with local installation codes and the requirements of the gas suppliera 3 feet (91cm) within a height of 15 feet (4.5m) above the meter / regulator assemblyb 3 feet (91cm) above - if within 10 feet (3m) horizontally