Tune Up Guides

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EK1T 103,000 to 149,000 BTU/HR
EK1 69,000 to 129,000 BTU/HR
EK2 149,500 to 209,000 BTU/HR
EK3 Up to 357,000 BTU/HR
EK1R 90+ Resolute Up to 100,000 BTU/HR
EK1C, EK2C Accel CS™ Up to 200,000 BTU/HR
Commercial Multiple Boiler Systems

EK1T 103,000 to 149,000 BTU/HR

Product Data & Illustrated Tune-up Guide

Specifications: EK1T Ascent Combi Boiler

Input Natural Gas
Gross Output 103,000 BTU/HR
128,000 BTU/HR
149,000 BTU/HR
AFUE 86%
85%
84%
Product Sheet Natural Gas/Propane
Tune-up Guide View
Input Propane
Output 103,000 BTU/HR
128,000 BTU/HR
149,000 BTU/HR
AFUE 86%
85%
84%
Product Sheet Natural Gas/Propane
Tune-up Guide View
Input Oil Heat
Output 104,000 BTU/HR
121,000 BTU/HR
149,000 BTU/HR
AFUE 87%
86%
85%
Product Sheet Oil Heat
Tune-up Guide View

Input Gross Output AFUE Product Sheet Tune-up Guide
Natural Gas 103,000 BTU/HR 86% Natural Gas/Propane View
Natural Gas 128,000 BTU/HR 85%
Natural Gas 149,000 BTU/HR 84%
Propane 103,000 BTU/HR 86%
Propane 128,000 BTU/HR 85%
Propane 149,000 BTU/HR 84%
Oil Heat 104,000 BTU/HR 87% Oil Heat View
Oil Heat 121,000 BTU/HR 86%
Oil Heat 149,000 BTU/HR 85%


EK1 Total System Weight: 315 lbs.
EK1 Dimensions: 39″Depth x 20″W x 41″H with stand
EK1 Domestic Water: 2.7 to 3.8 GPM (77ºF rise in temperature)

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 EK1T Ascent Combi
EK1T ASCENT™ COMBI

Specifications: EK1T+ Ascent Plus Combi Boiler

Input Natural Gas
Gross Output
AFUE Up to 90.3%
Product Sheet Natural Gas/Propane
Tune-up Guide View
Input Propane
Output
AFUE Up to 90.3%
Product Sheet Natural Gas/Propane
Tune-up Guide View
Input Oil Heat
Output
AFUE Up to 91.3%
Product Sheet Oil Heat
Tune-up Guide View

Input Gross Output AFUE Product Sheet Tune-up Guide
Natural Gas Up to 90.3% Natural Gas/Propane View
Propane Up to 90.3%
Oil Heat Up to 91.3% Oil Heat View


EK1T+ Total System Weight: 405 lbs.
EK1T+ Dimensions: 39″Depth x 20″W x 41″H with stand
EK1T+ Domestic Water: 2.7 to 3.8 GPM (77ºF rise in temperature)

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 Ascent Plus Combi Boiler
EK1T ASCENT™ PLUS COMBI

EK1 69,000 to 129,000 BTU/HR

Product Data & Illustrated Tune-up Guide

Specifications: EK1 FRONTIER Front Service
Input Natural Gas
Gross Output 70,000 BTU/HR
88,000 BTU/HR
105,000 BTU/HR
129,000 BTU/HR
AFUE 88%
88%
87%
86%
Product Sheet Natural Gas/Propane
Tune-up Guide View
Input Propane
Gross Output 70,000 BTU/HR
88,000 BTU/HR
105,000 BTU/HR
129,000 BTU/HR
AFUE 88%
88%
87%
86%
Product Sheet Natural Gas/Propane
Tune-up Guide View
Input Oil Heat
Gross Output 85,000 BTU/HR
90,000 BTU/HR
104,000 BTU/HR
121,000 BTU/HR
AFUE 87.9%
87.7%
87.5%
86.2%
Product Sheet Oil Heat
Tune-up Guide View
Input Gross Output AFUE Product Sheet Tune-up Guide
Natural Gas 70,000 BTU/HR 88% Natural Gas/Propane View
Natural Gas 88,000 BTU/ HR 88%
Natural Gas 105,000 BTU/HR 87%
Natural Gas 129,000 BTU/ HR 86%
Propane 70,000 BTU/HR 88%
Propane 88,000 BTU/HR 88%
Propane 105,000 BTU/HR 87%
Propane 129,000 BTU/HR 86%
Oil Heat 85,000 BTU/HR 87.9% Oil Heat View
Oil Heat 90,000 BTU/HR 87.7%
Oil Heat 104,000 BTU/HR 87.5%
Oil Heat 121,000 BTU/HR 86.2%

EK1 Energy Converter Total Weight: 270 lbs.
EK1 Total System Weight 450 lbs.
EK1 Dimensions: 17.5″Depth x 24.5″W x 26.5″H
EK1 Storage Tank: 115 lbs. 40 gal standard, up to 120 gal available
EK1 Domestic Water: 195 gal/per hour (77ºF rise in temperature)
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 EK1 Frontier - Front Service
EK1 Frontier
Front Service
EK1 Frontier - Stackable
EK1 Frontier
Stackable

Specifications: EK1 Rear Service
Input Oil Heat
Gross Output 104,000 BTU/HR
AFUE 87.5%
Product Sheet Oil Heat
Tune-up Guide View
Input Oil Heat
Gross Output 121,000 BTU/HR
AFUE 86.2%
Product Sheet Oil Heat
Tune-up Guide View
Input Gross Output AFUE Product Sheet Tune-up Guide
Oil Heat 104,000 BTU/HR 87.5% Oil Heat View
Oil Heat 121,000 BTU/HR 86.2%

EK1 Energy Converter Total Weight: 270 lbs.
EK1 Total System Weight 450 lbs.
EK1 Dimensions: 17.5 Depth” x 24.5″W x 26.5″H
EK1 Storage Tank: 115 lbs. 40 gal standard, up to 120 gal available
EK1 Domestic Water: 195 gal/per hour (77°F rise in temperature)
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 EK1 - Rear Service
EK1
Rear Service
For low clearance and crawl space applications

EK2 149,500 to 209,000 BTU/HR

Product Data & Illustrated Tune-up Guide

Specifications: EK2 FRONTIER Front Service
Input Natural Gas
Gross Output 153,000 BTU/HR
172,000 BTU/HR
192,000 BTU/HR
209,000 BTU/HR
AFUE 87%
87%
86.5%
86%
Product Sheet Natural Gas/Propane
Tune-up Guide View
Input Propane
Gross Output 153,000 BTU/HR
173,000 BTU/HR
192,000 BTU/HR
209,000 BTU/HR
AFUE 87%
87%
85%
84%
Product Sheet Natural Gas/Propane
Tune-up Guide View
Input Oil Heat
Gross Output 149,000 BTU/HR
175,000 BTU/HR
190,000 BTU/HR
206,000 BTU/HR
AFUE 87.5%
87%
86.5%
86%
Product Sheet Oil Heat
Tune-up Guide View
Input Gross Output AFUE Product Sheet Tune-up Guide
Natural Gas 153,000 BTU/HR 87% Natural Gas/Propane View
Natural Gas 173,000 BTU/HR 87%
Natural Gas 192,000 BTU/HR 85%
Natural Gas 209,000 BTU/HR 84%
Propane 153,000 BTU/HR 87%
Propane 173,000 BTU/HR 87%
Propane 192,000 BTU/HR 85%
Propane 209,000 BTU/HR 84%
Oil Heat 149,500 BTU/HR 87.5% Oil Heat View
Oil Heat 175,000 BTU/HR 87%
Oil Heat 190,000 BTU/HR 86.5%
Oil Heat 206,000 BTU/HR 86%

EK2 Energy Converter Total Weight: 350 lbs.
EK2 Total System Weight 550 lbs.
EK2 Dimensions: 24.75″Depth x 24.5″W x 27.5″H
EK2 Storage Tank: 115 lbs. 40 gal standard, up to 120 gal available
EK2 Domestic Water: 350 gal/per hour (77°F rise in temperature)
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 EK2 Frontier - Front Service
EK2 Frontier
Front Service
EK2 Frontier - Stackable
EK2 Frontier
Stackable

Specifications: EK2 Rear Service
Input Oil Heat
Gross Output 147,500 BTU/HR
170,000 BTU/HR
206,000 BTU/HR
AFUE 87.6%
87%
84%
Product Sheet Oil Heat
Tune-up Guide View
Input Gross Output AFUE Product Sheet Tune-up Guide
Oil Heat 147,500 BTU/HR 87.6% Oil Heat View
Oil Heat 170,000 BTU/HR 87%
Oil Heat 206,000 BTU/HR 84%

EK2 Energy Converter Total Weight: 350 lbs.
EK2 Total System Weight 550 lbs.
EK2 Dimensions: 24.75 Depth” x 24.5″W x 27.5″H
EK2 Storage Tank: 115 lbs. 40 gal standard, up to 120 gal available
EK2 Domestic Water: 350 gal/per hour (77°F rise in temperature)
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 EK2 - Rear Service
EK2
Rear Service

EK3 Up to 357,000 BTU/HR Gross Output

Product Data & Illustrated Tune-up Guide

Specifications: EK3 Natural Gas, Propane & Oil Heat
Input Natural Gas
Gross Output 255,000 BTU/HR
292,000 BTU/HR
125,000 BTU/HR
AFUE 85%
Product Sheet Natural Gas/Propane
Tune-up Guide Coming Soon
Input Propane
Gross Output 260,000 BTU/HR
299,000 BTU/HR
335,000 BTU/HR
AFUE 82%
Product Sheet Natural Gas/Propane
Tune-up Guide Coming Soon
Input Oil Heat
Gross Output 272,000 BTU/HR
313,000 BTU/HR
357,000 BTU/HR
AFUE 86%
Product Sheet Oil Heat
Tune-up Guide Coming Soon
Input Gross Output AFUE Product Sheet Tune-up Guide
Natural Gas 255,000 BTU/HR 85% Natural Gas/Propane Coming Soon
Natural Gas 292,000 BTU/HR
Natural Gas 125,000 BTU/HR
Propane 260,000 BTU/HR 82%
Propane 299,000 BTU/HR
Propane 335,000 BTU/HR
Oil Heat 272,000 BTU/HR 86% Oil Heat Coming Soon
Oil Heat 313,000 BTU/HR
Oil Heat 357,000 BTU/HR

EK3 Total System Weight 650 lbs.
EK3 Dimensions: 45″Depth x 33″W x 39.75″H
Length front to back includes piping and burner box.
The EK3 is designed to fit thru a 34″ doorway
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 EK3 Frontier - Front Service
EK3 Frontier
Front Service


EK1R 90+ Resolute Up to 100,000 BTU/HR Gross Output

Product Data & Illustrated Tune-up Guide

Specifications: EK1R 90+ Resolute

Input Natural Gas/Propane
Gross Output
AFUE Up to 90%
Product Sheet Natural Gas/Propane
Tune-up Guide View
Input Oil Heat
Gross Output
AFUE Up to 91*%
Product Sheet Oil Heat
Tune-up Guide View

Input Gross Output AFUE Product Sheet Tune-up Guide
Natural Gas Up to 90% Natural Gas/Propane View
Propane Up to 90%
Oil Heat Up to 91*% Oil Heat View

Resolute Energy Converter Total Weight: 270 lbs.
Resolute Total System Weight 450 lbs.
Resolute and stand w/o inducer Dimensions: 21.5″ Depth x 25″ W x 49″ H
Resolute and stand w/ inducer Dimensions: 21.5″ Depth x 25″ W x 63.75″ H
EK1 Storage Tank: 115 lbs. 40 gal standard, up to 120 gal available
Resolute Domestic Water Oil Heat: 186 gal/per hour (77°F rise in temperature and 40 gallon tank)
Resolute Domestic Water Gas Heat: 170 gal/per hour – 228 gal/per hour based on first hour draw with 77°F rise and 40 gallon tank
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 EK1 90+ Resolute
EK1 90+ Resolute



Specifications: EK1RT Resolute RT Boiler

Input Natural Gas/Propane
Gross Output
AFUE Up to 90.3%
Product Sheet Natural Gas/Propane
Tune-up Guide View
Input Oil Heat
Gross Output 86,500 BTU/HR
AFUE Up to 91.3%
Product Sheet Oil Heat
Tune-up Guide View

Input Gross Output AFUE Product Sheet Tune-up Guide
Natural Gas Up to 90.3% Natural Gas/Propane View
Propane Up to 90.3%
Oil Heat 86,500 BTU/HR Up to 91.3% Oil Heat View


EK1RT Total System Weight: 395 lbs.
EK1RT Dimensions: 39″Depth x 20″W x 52″H with stand
EK1RT Domestic Water: 2.7 to 3.8 GPM (77ºF rise in temperature)

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 EK1RT Resolute RT Boiler
EK1RT Resolute RT Boiler



Accel CS™ EK1C, EK2C Up to 200,000 BTU/HR Gross Output

Product Data & Illustrated Tune-up Guide

Specifications: Accel CS™ EK1C

Input Natural Gas/Propane
Gross Output
AFUE 97%
Product Sheet Natural Gas/Propane
Tune-up Guide View

Input Gross Output AFUE Product Sheet Tune-up Guide
Natural Gas 97% Natural Gas/Propane View
Propane 97%
Accel CS
Accel CS™

Specifications: Accel CS™ EK2C

Input Natural Gas/Propane
Gross Output
AFUE 95%
Product Sheet Natural Gas/Propane
Tune-up Guide View

Input Gross Output AFUE Product Sheet Tune-up Guide
Natural Gas 97% Natural Gas/Propane View
Propane 97%

Accel CS Energy Converter Total Weight: 70 lbs.
System Weight 197 lbs. (dry)
With stand: 14″ Depth x 25 7/8″ W x 64 15/16″ H
Wall mounted: 14″ Depth x 25 7/8″ W x 50 7/16″ H
Storage Tank: 115 lbs. 40 gal standard, up to 120 gal available
Domestic Hot Water: up to 228 gal/per hour (77°F rise in temperature with 40 gallon tank)
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