Infrared heater webinar - energySMART for trade allies

Infrared Unit
Heater
Fundamentals
Special guest: Modine
Presented by:
Shonda Biddle, energySMART
Jamie Tuinstra, Modine Manufacturing Company
November 13, 2014
Infrared Unit Heaters - Fundamentals
• energySMART overview
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•
Rebates for your infrared unit heaters
Rebates and incentives for energy efficiency upgrades
• Special Guest: Jamie Tuinstra, Product Manager,
Modine Manufacturing Company
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•
What are infrared unit heaters?
What are ideal applications?
How do they save energy?
Nicor Gas service area
• Nicor Gas serves
over 2 million
customers in 643
communities.
About energySMART
How are the programs
funded?
Residential and
commercial Nicor Gas
customers, based on
consumption
energySMART dates
energySMART rebates are
available through May 31, 2015* or
until funds are exhausted.
Please Note:
Rebate must be submitted within 90 days
of installation date or by June 30, 2015,
whichever comes first.
Rebates available
Project
Rebate
Steam traps
commercial (<15 psig)
$50 per trap
Steam traps
industrial/process (≥15 psig)
$300 per trap
Boiler controls
$0.50 per MBH,
up to $1,500
Boiler tune-ups
$0.40 - $0.50 per MBH
up to $1,500
Pipe insulation
$4.00 / linear foot – indoor
$8.00 / linear foot - outdoor
Ozone laundry
$25 per pound of
washer capacity
Pool / spa covers
$0.75 - $1.25 per sq. ft.
Rebates available
Project
Rebate
Programmable thermostats
$50 per unit
Condensing boilers
(AFUE/TE ≥90%)
$500 - $7,500
Non-condensing boilers
(AFUE/TE ≥85%)
$400 - $2,500
Furnaces (≥92%)
$300 - $400
Storage water heaters
$150 - $200
Condensing unit heaters
$325
Infrared heaters
$700
Rebates available – Commercial Food
Services
Project
Rebate
Pre-rinse spray valves
$50 per unit
Fryers
$500 - $550
Ovens
$400 - $1,400
Conveyor oven
$500 – 1,000 per deck
Infrared charbroiler
$500
Other commercial food service
equipment
Varies
Custom incentive
• For natural gas-saving projects not addressed by rebates.
• Incentives based on the amount of natural gas (in therms)
saved in first year by completing the project.
• Maximum incentive per project is $500,000 (cannot exceed
50% of the installed project cost).
• Pre-approval required before any work starts
Project Savings
Incentive Amount
2,500 – 15,000 therms saved
/ year
$0.75 / therm saved
> 15,000 therms saved / year
$1.00 / therm saved
Incentive Cap
$500,000 / year
Technical assistance
 Opportunity Assessments
 Targeted assessment for
specific energy saving
opportunities
 Facility Assessments
 Complete analysis and
report of energy-saving
opportunities
 Includes prioritized
savings opportunities and
incentives available
 Other technical
assistance available
Jamie Tuinstra, Modine Manufacturing Company
Infrared unit heaters
Infrared unit heaters
Infrared unit heaters
•Basics
– What is infrared
– Why use infrared
•Product features and benefits
– High-intensity heaters
– Low-intensity heaters
•Design & applications
Infrared unit heaters
Types of heat transfer
•Conduction - no motion
– Handle on a pan
•Convection - currents
– Boiling water
•Radiation - rays
– Campfire
Infrared unit heaters
What is infrared?
• Radiant energy travels in lineof-sight
– Heats upon striking object
– If not line-of-sight, object won’t be
heated
• Objects warmed by IR provide
heat
– Secondary effects
• Conduction to other objects
• Convection to air
Infrared unit heaters
Benefits
•Quiet/clean
– No air movement / blowing of dirt or dust
•Low maintenance
– Few moving parts
•Installation
– No ductwork
•Excellent for zone or spot heating
Infrared unit heaters
Benefits
• Energy cost reduction
– Objects are heated, not the surrounding air
– No air mover energy costs
– Lower thermostat settings
• Quick temperature recovery
– Continues to heat objects when doors are open
Infrared unit heaters
Unit Specifics
High intensity infrared
Model MHR - Features
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Natural or Propane Gas
30,000 to 200,000 Btu/hr
Unvented Operation
Direct Spark and Millivolt
1- and 2-Stage Gas Controls
Tile temperatures Up To 1850°F
115V or 24V Supply (Except Millivolt)
Indoor use only!
High intensity infrared
Model MHR - Features
Polished Aluminum
Reflector
16 Gauge
Aluminized Steel
Frame
Full Perimeter
Tile Retention
Frame
Serial
Plate
Spark
Electrode
Ceramic
Burner
Ignition Control
& Gas Valve
Note:
Units must always be installed
with controls on the bottom.
High intensity infrared
Model MHR - Features
Burner
Assembly
Gas
Orifices
Manifold
Spark
Electrode
Gas Valve
Ignition
Controller
High intensity infrared
Model MHR – Unit Mounting
• Rigid mounting
• 3/8” threaded rods
• Where code allows,
chain mounting
• 0°-30° mounting
angle
• Manifold at bottom
• Utilities not to cross
over top
0° to 30°
Low intensity infrared
Model TLP - Features
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•
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Pressurized system
Natural or propane
50,000 to 200,000 Btu/hr Input
Indoor or outdoor
Straight or U-tube systems (20-70’)
Vented
115 V supply & 24 V controls
Service friendly
Conversion kits
Low intensity infrared
Model TLP – Burner Features
20 gauge aluminized
steel casing, bakedon polyester powder
coat paint
180° Rotate-able
Gas Valve
Combustion Blower
Combustion
Airflow Indicator
Light
Hot Surface
Igniter & Flame
Sensor
Terminal Board
Flame Sight
Glass
Enclosed
Burner
Compartment
Hanging Access
Doors
Low intensity infrared
LOW INTENSITY INFRARED
Model TLP – Tube System Features
• 16 Ga. darkened aluminized steel* tubes
– Improved corrosion resistance for longer life
– Heat treated for darkness (better heat transfer)
– Doesn’t flake or scratch like painted tubes
*For units rated 150,000 Btu/hr and up:
– First tube is 16 Ga. Titanium Aluminized Steel (not heat
treated) with stainless steel clamps
Low intensity infrared
Model TLP – Unit Mounting
•Chain Mounting Sets with “S” Hooks
– 20’ chain (MHR & TLP)
– 40’ chain (TLP)
Design and application
High & low intensity infrared
•Applications
•Selection
•Additional Considerations
Design and application
•When to use infrared: if
impractical/costly to heat
large air volumes
– Where only people
need to be warm
– Small section within a
large building
– Near frequently opened
doors
– High ceilings
Design and application
Typical applications
Our focus:
• Partial building heat
• Assembly line
• Spot/area heating
• Single work cell
• Door coverage
• Commercial/industrial
Not our focus – will not discuss (See 9-200)
• Total building heat
• Entire space
Design and application
Typical applications
• Aircraft hangars
•
High ceilings/air changes
• Loading docks
•
Spot heating/open doors
• Warehouses
•
High ceilings/limited occupancy
• Manufacturing areas
Design and application
Typical applications
• Fire stations
•
Open doors/air changes
• Automotive service stations
•
Open doors/air changes
• Car washes
•
Open doors/air changes
Design and application
Typical applications
•Service counters
•Outdoor Restaurant Seating
•**Big Opportunity**
Design and application
Typical applications
•Airplane hangers
Design and application
Typical applications
•Factories (especially old drafty w/high ceilings)
Design and application
Typical Applications
•Warehouses/cold storage
Design and application
Typical applications
•Service bays
Design and application
Typical (Mis) applications
Design and application
Typical misapplication
Greenhouses:
• Dirt floors
• Plants may be
intolerant to infrared
heat
• Lack of uniform heat
distribution
• Clearance issues to
house materials
Design and application
Typical misapplications
Animal shelters/barns:
• Animals cannot voice discomfort
• May stress animals
• Poor production
Design and application
High & low intensity infrared
•Applications
•Selection
•Additional considerations
Design and application
Criteria for proper selections
Application
• Indoor or outdoor?
– High intensity is indoor only
• Spot heating or partial building area heating
– Typical: spot=high intensity, area=low intensity
Mounting height
• Clearance to combustibles
– Typical: more=high intensity, less=low intensity
Building layout
Design and application
Criteria for proper selection
•Area of coverage
– High Intensity
30°
30°
Design and application
Criteria for proper selection
•Area of coverage
– Low intensity
Design and application
Criteria for proper selection
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Understanding tube temperature profile
Typically around 1000°F at burner
Typically around 350 to 400°F at vent end
Radiant output is directly proportional to (∆T)4
Approximate Tube Temp Across Tube System
60 Foot Straight Tube
1000
1000
800
800
°F
°F
Approximate Tube Temp Across Tube System
30 Foot Straight Tube
600
600
400
400
200
200
0
5
10
15
20
Feet from Burner
25
30
35
0
10
20
30
40
Feet from Burner
50
60
Design and application
Selection & layout
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Partial building heating
Low intensity best suited
Mount within recommended mounting height
U-tube system recommended:
Why?
Let’s look at a 60’l assembly line example:
Design and application
Selection & layout
• Using a 60 foot straight tube system:
Approximate Tube Temp Across Tube System
60 Foot Straight Tube
1000
800
°F
Not a good
application
600
400
200
0
10
20
30
40
50
60
Feet from Burner
Be prepared
for service
calls!
It’s so nice and warm
at work, I could handle
cold fish all day.
I agree, it’s so nice, I
feel productive.
It’s so freaking cold
over here, that heater
above is junk.
Design and application
Selection & layout
• Using (2) – 30 foot straight tube systems:
Approximate Tube Temp Across Tube System
Qty (2) - 30 Foot Straight Tubes
1000
A fairly good
application
°F
800
600
400
200
0
10
20
30
40
50
60
Feet from Burner
It’s so nice and warm
at work, I could handle
cold fish all day.
It’s not bad, but I wish
that heater worked better.
I’m really happy my
employee cares enough
to keep me warm.
DESIGN AND APPLICATION
Selection & Layout
• Using (2) – 60 foot u-tube systems:
Approximate Tube Temp Across Tube System
Qty (2) - 60 Foot U-Tubes
1000
A very good
application
°F
800
600
400
200
0
10
20
30
40
50
60
Feet from Burner
It’s so nice and warm
at work, I could handle
cold fish all day.
It’s really comfortable in
here, I feel so productive.
I’m really happy my
employee cares enough
to keep me warm.
DESIGN AND APPLICATION
Selection & Layout
•Spot heating
– High intensity @ 30° mounting angle
– Low intensity u-tube @ 45° mounting angle
– Typically uses 2 units where practical
MHR 30
MHR 60
MHR100
MHR120
MHR160
Design and application
Criteria for proper selection
• Building layout
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–
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Lighting
Racked/stacked combustible material
Clearance to combustibles based on 90°F over ambient
Sprinkler heads – watch clearances!!!
Overhead cranes
Utility location
Design and application
High & low intensity infrared
•Applications
•Selection
•Additional considerations
Design and application
Additional considerations
• Low-intensity tube system expansion
– Systems can expand/contract by 1-6”
– Installation must accommodate to avoid alignment
issues
• Expansion remedies
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–
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–
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Chain-mounting (min. Length per I&S manual)
Flexible gas connectors
Tighten tube clamps to 50 ft-lb.
Overlap reflectors by 4”
Every other joint screwed
Design and application
Additional considerations
•Thermostat location
– Never in line-of-sight
– Can also use simple on/off switch
•Multiple unit wiring to one thermostat (9-410)
•Contaminated atmospheres
– Never for hazardous areas!!
•Negative pressure in space
– High intensity
– Low intensity with outside combustion air
Design and application
Additional considerations
• Indoor vs. Outdoor defined
– Outdoor: area ALWAYS exposed to outdoor ambient
conditions (i.e. no door to structure)
– Indoor: area SOMETIMES or NEVER exposed to
outdoor ambient conditions (i.e. opening/closing door)
Design and application
Additional considerations
•Indoor or outdoor?
Questions?
nicorgasrebates.com
877.886.4239
Shonda Biddle
Nicor Gas energySMART
[email protected]
312.607.3978
Jamie Tuinstra
Product Manager
[email protected]
262-636-1850
Thank you!
Shonda Biddle
Nicor Gas energySMART
[email protected]
312.607.3978
Jamie Tuinstra
Product Manager
[email protected]
262-636-1850.