Allied Technologies is extremely proud of its compact Mini-Gas series which is ideal for today’s energy efficient home, condominium or townhouse. Mini-Gas Hydronic Heating Boilers are manufactured to the highest standards for performance, efficiency, and reliability
MINI-GAS Series boilers are available in five compact sizes: 50,000, 75,000, 100,000, 125,000 and 150,000 BTU/HR input
- All models are available with our unique factory mounted and wired ZONE CONTROL BOARD.
- 85% AFUE efficiency rating.
- Minimum clearance of 2” to combustible surfaces on both sides and rear.
- All MINI-GAS boilers are approved for installation on combustible floors. There is no extra base or added cost required.
- Approved for closet installations.
- Automatic vent damper comes standard with AFUE rated boilers.
- Heat exchangers are designed to ASME code standards for industrial steel boilers.
- ASME certified manufacturing facility.
- Blocked Vent and Flame Roll Out Safety Switch – Standard.
- Packaged (PS) models available with many pre-wired and mounted components.
NRCan Qualification for Mini-Gas Boilers
Specifications
| MODEL | INPUT (Btu/hr) | OUTPUT (Btu/hr) | INPUT (kW) | OUTPUT (kW) | AFUE (%) |
|---|---|---|---|---|---|
| MG-50 | 50000 | 43000 | 14.7 | 12.6 | 85 |
| MG-75 | 75000 | 64000 | 22.0 | 18.8 | 85 |
| MG-100 | 100000 | 85000 | 29.3 | 24.9 | 85 |
| MG-125 | 125000 | 107000 | 36.6 | 31.4 | 85 |
| MG-150 | 150000 | 128000 | 44.0 | 37.5 | 85 |
– For Btu/h ratings above 2000 feet contact the factory.
Dimensions
| MODEL | DIM A (in.) | DIM B (in.) | DIM C (in.) | DIM D (in.) | DIM G (in.) * | SHIPPING WEIGHT (lb.) ** |
|---|---|---|---|---|---|---|
| MG-50 | 11.5 | 6.25 | 4 | 44 | 17.5 | 125 |
| MG-75 | 14.5 | 6.25 | 5 | 44 | 20.5 | 150 |
| MG-100 | 17.5 | 6.25 | 5 | 44 | 23.5 | 175 |
| MG-125 | 20.5 | 9.5 | 6 | 48 | 26.5 | 200 |
| MG-150 | 23.5 | 9.5 | 6 | 48 | 29.5 | 225 |
PERFORMANCE
The Mini-Gas series’ proven performance is the result of our continuous refinement of design and years of experience in building boilers to ASME standards. Our roll-formed stainless steel burners have been designed and lab tested to be clean burning and extremely long lasting.
EFFICIENCY
The key to the boiler efficiency is our unique DOUBLE-PASS steel finned tube heat exchanger. The heating surface area was maximized by spirally welding a 1/2” fin to each 2″ boiler tube. The result is one of the most efficient atmospheric boilers on the market today.
RELIABLITY
Over 65 years of hydronic heating experience backed by unsurpassed service make the Mini-Gas boiler the reliable choice for applications including in-floor heating, radiant panels, baseboards, snow melt, and indirect hot water heaters. Every boiler is factory tested as part of our stringent quality assurance program.
WARRANTY PROTECTION
Mini-Gas are manufactured to the highest standards, employing only top quality materials and workmanship. Our proven design features a TEN-YEAR heat exchanger warranty and one year on all parts and controls. Please refer to printed warranty for details. Installation and service manual provided with every boiler.
USER FRIENDLY DESIGN
Boiler Controller: The Integrated Boiler Control provides spark ignition, safety and operating functions in a single and easy to program unit, pre-wired with plug-in connectors for quick installation and service.
Zone Control System: Our exclusive Zone Controller handles up to 4 zones with separate plug-ins for zone valves and LED lights to clearly show which zones are being heated. If required, additional boards can be added to increase zone capacity.
COMPONENTS:
Standard Models Include:
• Integrated Boiler Control
• Zone Control Board
• Stainless Steel Burners
• Combination Gas Valve
• Temperature/Press Gauge
• ASME Safety Relief Valve
• Drain Valve
• Draft Hood
• Blocked Vent Safety Switch
• Flame Roll Out Safety Switch
• Automatic Vent Damper
“PS” Models Include:
• Standard model parts plus:
• Circulator wired & mounted
• Custom Cast Iron Pump Adapter
• Expansion Tank
• Air Purger
• Combination Fill/Pressure Regulating Valve
• Automatic Air Vent
Components
1.
1.Automatic Vent Damper
Supplied with all boilers, the vent closes when the boiler is not firing preventing heat loss and conserving energy.
2. Standard Draft Hood
Prevents down draft and exhaust flue gases through the chimney. Includes a quick connect Blocked Vent Safety Switch.
3. Circulator/Pump and Cast Iron Adapter
Included on “PS” models and supplied wired and mounted, or wired and loose if specified.
4. Long Life Stainless Steel Burners
Designed for quiet operation and maximum efficiency. Burner drawers slide out easily for inspection and service when required.
5. Combination Gas Control
Controls include manual valve, two automatic operators and pressure regulator to provide dual-seated safety shutoff.
6. Steel Fin-Tube Heat Exchanger
Our unique double pass design uses 1/2” fin spirally and continuously welded on 2” OD SA 178A industrial steel boiler tube to maximize heat transfer area.
7. Temperature/Pressure Gauge
Factory supplied gauge indicates operating temperature and pressure of the boiler.
8. Integrated Boiler Control
Advanced Honeywell® control with electronic spark ignition, thermal purge and limit rated water temperature control. Simple programming and LED display for quick installation and diagnostics.
9. Flame Roll-out Safety Switch
For added protection, the safety device shuts the boiler down.
10. Enclosure Panel
A durable and attractive panel protects controls and wiring.
Standard Models Include:
• Integrated Boiler Control
• Zone Control Board
• Stainless Steel Burners
• Combination Gas Valve
• Temperature/Press Gauge
• ASME Safety Relief Valve
• Drain Valve
• Draft Hood
• Blocked Vent Safety Switch
• Flame Roll Out Safety Switch
• Automatic Vent Damper
“PS” Models Include:
• Standard model parts plus:
• Circulator wired & mounted
• Custom Cast Iron Pump Adapter
• Expansion Tank
• Air Purger
• Combination Fill/Pressure Regulating Valve
• Automatic Air Vent
Service Bulletins
Replacement Part Orders for MG & SG Series Gas Boiler Pilots
This notice is to inform that changes have been made to the MG and SG Series gas boilers electronic ignition pilot assemblies (January 2013). This change affects the following models in both natural gas and propane.
MG SERIES: MG-50-E, MG-75-E, MG-100-E, MG-125-E, MG-150-E
SG SERIES: SG-135-E, SG-180-E, SG-225-E, SG-270-E, SG-315-E, SG-360-E, SG-450-E
Since the pilot bracket and hood angle has changed, replacement pilots for these models must
be ordered and replaced as an assembly including the bracket and pilot supply tubing.
When ordering a replacement pilot, please use the following descriptions:
Pilot Assembly – MG – Universal
Pilot Assembly – SG – Universal
For more details contact your local sales representative.
If you have any questions regarding this bulletin, please do not hesitate to contact Tony Woo at tony@alliedboilers.com or 604-929-1214.
New Integrated Control on MG and SG Models
MG and SG boilers are using a new integrated control.
The advanced Honeywell control includes electronic spark ignition, post and thermal purge and limit rated water temperature control. Simple programming and LED display aid quick installation and is 2012 NRCAN / DOE compliant.
Please note:
Operating setpoint (SP) equals Hi-limit setpoint (HL)
Adjust (HL) to control boiler water supply temperature
HL factory set to 180°F
Electrical Cut Off (ECO) limit is set to 230°F
Warranty Cards
Remember that warranties are only valid if a warranty card is filled out and returned to Allied Technologies by the home owner. Online registration is available at our Product Registration Section of the website.