Electric Boilers
Meeting Agenda
Why Electric Boilers??? Rising / unstable fossil fuel prices Low / stable electric rates Save money on monthly heating bills Save money on boiler installation New construction opportunities Retrofit market opportunities
Meeting Agenda
Thermolec Boilers Features: FFB and TMB models Installation Sequence of Operations
EP Sales and Thermolec on the Web:
www.epsalesinc.com/thermolec
Why Electric Heat ?Electric heat can reduce your customer’s
heating bills by up to 50%!
Electric boiler total installed cost is up to 50% less than Mod/Con gas boiler!
Monthly savings from electric vs. gas heat can pay for electric boiler retrofit in less than two years!!
Uses Domestically Produced Energy!!!
What is Happening with Energy Prices?
Electric Boilers
What is Happening with Energy Prices?
Electric Boilers
How Do We Compare Energy Prices?
Electric Boilers
Electric Boilers
Get to Know Your Local Rural Electric Coops and
Utility Company Programs
Electric Boilers
Electric Boilers
Electric Boilers
Electric Boilers
Electric Boilers
Electric Boilers
Electric Boilers
How Do We Compare
Propane Rates vs.
Electric Rates?
Electric Boilers
Compare Propane to Electric – Cost Per Million BTU’s
Electric Boilers
Propane Company Location Current Price per Gallon
Amerigas McCall $2.62
Suburban Propane Twin Falls $2.90
Suburban Propane Boise $3.30
Suburban Propane Elko, NV $3.32
V-1 Propane McCall $2.59
AVERAGE PRICE $2.94
Current Propane Rates
Propane : Cost comparison
• Current average propane cost = $2.94 per gallon
• $2.94 per gallon with a 90% efficient device = $35.70 per million BTU
• Inland Power Electric Rate = $.0575 per kW
• $.072 per kW = $16.85 per million BTU
Using the Cost per Million Btu sheet to sell the concept
Electric Boilers
Compare Annual Heating Bills
Propane vs Electric
• Assume 1,500 SF ranch home with full basement. 3,000 SF total heated space
• Assume 1500 gallons of propane per heating season
• Assume $2.94 per gallon and $.0575 per kW
Electric Boilers
Compare Annual Heating Bills
Electric vs. Propane
• 1500 gallons X 91,500 btu per gallon of propane = 137,250,000 btu’s
• 137,250,000 btu’s X 90% = 123,525,000 btu output with propane
• 123,525,000 ÷ 3,413 btu per kW = 36,192 kW
Electric Boilers
Estimated Annual Savings
Heating with Electric vs. Propane
• 1500 gallons X $2.94 per gallon of propane = $4,410 cost of heat
• 36,192 kW X $.0575 per kW = $2,081 cost of heat
• $4,410 - $2,081 = $2,329 annual savings!
• 52.8% annual savings!
Electric Boilers
Why Electric Heat ?
Reduce winter heating bills by Switching to Electric!!!!
Electric Boilers
Why Electric Heat ? Retrofit Market Opportunity
Existing propane boiler, whole house HW or radiant floor system
Retrofit to electric to take advantage of low electric rates from Electric Coop
Why Electric Heat ?
Electric Boilers
Electric Boilers
Electric Boilers
Why Electric Heat ?Retrofit Market Opportunity • Assume $2,500 total installed cost of electric boiler • Electric comparison – save $2,081 on heating bills• Retrofit boiler installation with existing propane boiler, payback in less than 2 years!
Electric Boilers
Why Electric Heat ? Reduce annual heating bills …..Also….. Reduce total installed cost of boiler system
Electric Boiler vs. Gas Boiler Installation / Material Cost
Comparison34,000 btu radiant floor heating system
Fossil fuel boiler requires venting and gas piping
Electric Boilers
Why Electric Heat ? New Construction: Reduce Boiler
System Total Installed Cost
New construction - radiant in basement, 34,000 btu load:
• Electric boiler: 10 kW $1,022• Mod/Con gas boiler: 50,000 btu input
$_______
Add for gas boiler installation:• Gas piping, Venting
Why Electric Heat ?
Electric Boilers
Why Electric Heat ?
Electric Boilers
Electric Boilers
Why Electric Heat ? New construction - radiant in basement:• Electric boiler: 34,000 btu output (10 kW)
$1,022• Mod/Con gas boiler: 50,000 btu input
$2,500 and up
Add for gas boiler installation:• Gas piping: Add???• Venting: Add???
Electric boiler is up to 50% lower total installed cost vs. Mod/Con gas boiler!
Electric Boilers
Why Electric Heat ? Convenience• Supplement geothermal• Supplement solar• Small radiant jobs • Projects that have venting issues, gas
piping issues, etc.
Why Electric Heat ?
Electric Boilers
Electric Boilers
FFB Model New Features
• One boiler for all applications with updated features:
• 190°F maximum supply water temp• Manual reset high limit sensor on tank• Solid state relay on first element, DC relays on
other elements (exception 5.75 elements have SSR’s)
• Reduced price
Electric Boilers
TMB ModelTMB Boiler Features
• Available in 3, 6, 9, 11kW sizes• More compact, lighter weight• Same standard features as the FFB • First two element relays built on to control board• Less expensive than the FFB
Electric Boilers
Electric Boilers
• FFB Model available from 5 kW through 40 kW 17,000 to 136,500 BTU output
• Single phase and
three phase
• Boilers are CSA Listed
• Not ASME listed
• Compact housing 5 kW – 23 kW:
18” x 18” x 9-1/2”
42 pounds 27 kW – 40 kW:
28” x 18” x 9-1/2”
62 pounds
Electric Boilers
Electric Boilers
• Stainless Steel Tank Corrosion resistant
• Supply Water Connection
• Return Water Connection Conveniently located
Electric Boilers
• Nickel Chrome low watt density element in Incoloy tube From 1 to 4 elements
depending boiler model
Electric Boilers
• Pressure / Temp Gauge and Pressure Relief Valve come with boiler
• Gauge installs on boiler tank
Electric Boilers
• Circuit breakers
Easy isolation for service
Electric Boilers
• High Limit Sensor
• Now manual reset
• Backup Contactor
Double break contactor, cuts power to elements
Prevents boiler from overheating
Electric Boilers
• Transformer with fuse protection
240/24VAC
Powers control voltage
• Pump relay Switches pump on with call
for heat (dry contact)
Electric Boilers
• Electronic control board with aquastat
• Supply water temperature sensor
• Solid state relays Controls all boiler functions including pump operation, supply water temperature, element switching and load management control Modulates elements for better multiple zone system control
Now SSR on first element only
Electric Boilers
On / Off Boiler Control versus Full Modulation
“Give it the Gas”
Electric Boilers
• Outdoor sensor and reset “Cruise Control”
Installed on North side of home 18/2 wired to boiler control board Boiler adjusts supply water
temperature based on ambient
temperature Saves energy Improves comfort
Electric Boilers
TMB Boiler Features • Same standard
features as FFB boiler: Stainless steel
tank Full modulation Outdoor sensor
and reset control Circuit breakers Pump relay P/T gauge and
pressure relief valve
Load management control
Boiler Selection• BTU output requirement
• Choose the model: FFB or TMB
Electric Boilers
Electric Boilers
Dual Temp. Option
Electric Boilers
Electric Boilers
Recommended Water Flow Rate - 20° ΔT
Electric Boilers
Boiler Installation Basics• Wall hung, zero clearance to combustible materials
• 12” (5 – 23 kW) or 24” (27 kW and up) minimum clearance above boiler
• Primary / Secondary piping or direct return based on flow requirements
Electric Boilers
Electric Boilers
Electric Boilers
Electric BoilerQuestions???
Custom Duct Heaters
Custom Duct Heater Standard Components
Automatic Reset
Cut-out Manual Reset Cut-out
Magnetic Contactors
Load Fuses
Transformer Air Flow Switch
Thank You For Your
Business!
