Sunpak Model S25, S34

The original “above the floor” patio heater since 1984.  Don’t settle for everyone else’s copy when you can have the standard patio heater used in restaurants for decades.  Available in Black or Stainless Steel, the Sunpak® Models S25 & S34 are outdoor rated heaters available for use with natural or propane gas.  These heaters can be either wall or ceiling mounted. The mounting kit allows this heater to be mounted from above keeping the patio deck free and clear.  Heat coverage varies depending on the wind exposure but is approximately a 10 x 10 ft area.  Typical mounting height is 8-9 feet from the floor.

The required clearance from combustible materials must be maintained on all heaters. In addition heaters must have adequate fresh air and ventilation to operate properly. Make sure you can meet these requirements in making your heater selection.

S25 offers a lower radiant heat output which allows this heater to be located in patios with limited ceiling height.

S34 offers a greater radiant heat output which allows this heater to be located higher. Also note the above and side clearance requires increases with the higher BTU/Hr unit.

This heater requires a 24 VAC source and switch or timer or other control device. This control device is to be supplied by the installer

S25, S34 Specifications

  • 25,000 btu (S25) or 34,000 btu (S34)
  • Black or Stainless Steel
  • Single-Stage Control
  • Natural Gas or Propane
  • 24 VAC – 20 VA
  • Electronic Ignition
  • Wall or Ceiling Mounted
  • CSA Design Certified
  • Rain Protected
  • Optional Beveled Face Trim

WARNING - California Proposition 65

If not installed, operated and maintained in accordance with the manufacturer's instructions, this product can expose you to substances in the fuel or from combustion including carbon monoxide which can cause death or serious illness and which are known to the State of California to cause cancer, birth defects or reproductive harm. For more information go to www.P65WARNINGS.CA.GOV

Model
Btu/h
Side In
Rear In
Ceiling In
Below In
Mtg Angle
S25
25,000
24″
12″
9″
48″
Horizontal
S34
34,000
24″
17″
13″
48″
Horizontal
S25*
25,000
24″
8″
14″
48″
30° Max
S34
34,000
24″
8″
18″
48″
30° Max

Above clearances apply to Natural and Propane.
*Model S25 for propane gas for use in horizontal position only.

Sunpak Standard Models

Item No.
Model
Gas Input
Gas Type
Finish
Electrical
Wt.
12001-2
S25
25,000 BTU/Hr
Natural Gas
Black
24 VAC / 20 VA
41 lbs
12002-2
S34
34,000 BTU/Hr
Natural Gas
Black
24 VAC / 20 VA
41 lbs
12001-4
S25 SST
25,000 BTU/Hr
Natural Gas
Stainless Steel
24 VAC / 20 VA
41 lbs
12002-4
S34 SST
34,000 BTU/Hr
Natural Gas
Stainless Steel
24 VAC / 20 VA
41 lbs

Specification: Patio Heater shall be Sunpak Model S25 or S34 , utilizing a ceramic burner, electronic ignition, flame rectification safety, operating with 24 VAC control.  Heater casing to have dimensions of 8″ x 8″ x 48″ long and the heater must be CSA design certified for outdoor use.  Follow Manufacturer’s clearance to combustibles requirements.

Mounting kit should be specified as Item No. 12006  – Mounting Kit Black  or  12006-6  Mounting Kit Stainless.  Kits are universal to all Sunpak models.

Technical Information

Standard Series

IOM Manual

Spec Sheet

Mounting Kit

Transformer

Optional Face Trim

FAQ Standard Models

Item No. 12006     SP Mounting Kit Black
Item No. 12006-6  SP Mounting Kit Stainless Steel

The mounting kits are universal between all Sunpak models.

For a single heater, any brand transformer with the following specs will work:  24 VAC – 20VA (minimum)  Each heater requires 20VA, if two heaters are used, the transformer will need to be 40VA.  Five heaters would require 100VA and so on.

Most installers utilize a simple wall switch.  Another option would be a timer switch carried by most “big box” stores.

What about a thermostat?  Not recommend.  Infrared energy passes through the air and heats people and objects directly.  Since thermostats measure air temperature they won’t work outside.  The heaters might never turn off.

As a general rule of thumb, each Sunpak heater will heat approx. 10 x 10 ft of area.  A 10 x 20 ft patio would use two heaters.  Remember that with infrared, the heater will only heat things it can shine on.  Heaters should be positioned so they “shine” where the people will be.

Heaters mounted between 8-9 ft from the floor seem to hit the “sweet spot”.  7ft is considered the minimum.  Anything below this becomes a safety issue and will most likely be too intense to stand under.  Heaters mounted over 10ft are less effective.

SHORT ANSWER: 8 ft 5 in.

We recommend for safety reasons that no patio heater should be installed below 7ft from the floor.  Working backwards and taking into account the clearance requirements.  The following guide can be used.

S25 in horizontal position (pointed straight down) requires 8’5″ floor to ceiling distance.

S25 at 30° angle requires 8’10” floor to ceiling distance

S34 in horizontal position requires 9′ floor to ceiling distance

S34 at 30° angle requires 9’5″ floor to ceiling distance

No.  The TSH model uses a completely different valve and other parts that are not designed to be dropped into the standard units.

No.  However with the right parts, it is possible to convert between gas types.   Contact us for help on conversions. 

Warning: If the procedure is done incorrectly, potential fire and death can occur.

Contact

How can we help?

We’re happy to give you a quote or answer questions regarding the S25, S34 standard models. Also, we don't believe in high pressure sales, and you won't be added to any kind of list.