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HEATEC BULLETIN
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July 15, 2008
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How barge operators
might cut fuel costs significantly

If you operate a barge equipped with a hot oil heater it may be possible to cut its fuel costs significantly. If the heater has a net thermal efficiency of 80 percent or less, it is wasting a lot of fuel. That is well below the efficiencies of heaters we currently offer.
By changing to a heater with high thermal efficiency it may be possible to achieve substantial savings over the course of a year. Obviously, the amount of savings depends on several variables such as the cost of fuel, the number of hours the heater operates, its heat load, etc.
The first thing you need to determine is the net thermal efficiency of your hot oil heater. To do that, simply measure the temperature of its exhaust gas. Then use the chart shown below to find its net thermal efficiency.
Now examine the table shown at the top of the page. It is based on a heat load of 8 million Btu/hour and shows fuel usage for a wide range of thermal efficiencies. You can use the hourly usage shown to compare fuel usage of your heater with our heaters with thermal efficiencies from 87 to 92 percent. You can then calculate usage over a year using variables applicable to your operation.
As an example, consider a barge that requires 8 million Btu/hour to maintain the temperature of its cargo. Assume it has a heater with a thermal efficiency of 80 percent. If that heater operates only 50 percent or the time, it will burn 330,159 gallons of No. 2 fuel over the course of a year. At $3.90 a gallon that amounts to $1, 287,619/ year!
Our heater operating at 92 percent thermal efficiency could reduce that fuel usage from 330,159 gallons to 287,095 gallons. That would cut usage by 43,064 gallons and save you $167,950 dollars a year. And remember, this is for a single barge.
If your heater has a lower thermal efficiency than the example we cited the savings would be even greater. And if the size of your barge requires more heat than our example, the savings would be greater yet.
Reducing the amount of fuel you use not only saves you money: it conserves energy. And that is one of the biggest concerns of our nation at this time.
Our standard marine heaters have efficiencies of 87 to 89 percent. With our Stackpack heat exchanger their thermal efficiencies increase up to 92 percent.
A changeover to Heatec heaters from another brand of heater should not affect your inventory of replacement parts. Heatec heaters use the same parts you likely have in stock: Powerflame burners, Fireye flame monitors, Partlow controllers, Dean pumps, and other widely available components.
Moreover, Heatec has its own trained field service technicians ready for on-site work, not only on Heatec heaters, but on other brands as well.
We think you will quickly realize that you can’t afford to continue using a heater that is wasting a lot of fuel. We will be glad to do a free on-site analysis of your current heaters and calculate savings you could expect by switching to a Heatec marine heater.
We are the leading manufacturer of heaters for the asphalt industry and have been in business since 1977. Call us today and let’s discuss your options.
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Potential savings by upgrading your heater
to one with a higher thermal efficiency
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Thermal
Efficiency
(%)
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Usage
Gal per hour
(8 million Btu/hr)
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Usage
Gal per week
(24/7)
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Usage
Gal per year
(operating 50% of time)
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Cost per year
(No. 2 Fuel
at $3.90 gallon)
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Savings per year
by upgrade
to 87% efficiency
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Savings per year
by upgrade
to 92% efficiency
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70
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86.4
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14,512
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377,324
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$1,471,565
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$287,547
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$351,896
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71
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85.2
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14,308
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372,010
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$1,450,838
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$266,821
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$331,170
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72
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84.0
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14,109
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366,843
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$1,430,688
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$246,670
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$311,019
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73
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82.8
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13,916
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361,818
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$1,411,089
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$227,072
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$291,421
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74
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81.7
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13,728
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356,928
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$1,392,021
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$208,003
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$272,352
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75
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80.6
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13,545
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352,169
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$1,373,460
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$189,443
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$253,792
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76
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79.6
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13,367
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347,536
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$1,355,388
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$171,371
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$235,720
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77
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78.5
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13,193
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343,022
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$1,337,786
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$153,769
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$218,117
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78
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77.5
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13,024
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338,624
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$1,320,635
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$136,617
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$200,966
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79
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76.5
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12,859
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334,338
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$1,303,918
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$119,901
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$184,249
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80
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75.6
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12,698
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330,159
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$1,287,619
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$103,602
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$167,950
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81
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74.7
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12,542
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326,083
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$1,271,723
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$87,705
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$152,054
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82
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73.7
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12,389
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322,106
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$1,256,214
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$72,196
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$136,545
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83
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72.9
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12,239
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318,225
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$1,241,079
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$57,061
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$121,410
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84
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72.0
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12,094
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314,437
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$1,226,304
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$42,286
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$106,635
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85
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71.1
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11,951
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310,738
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$1,211,877
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$27,859
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$92,208
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86
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70.3
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11,812
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307,124
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$1,197,785
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$13,768
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$78,116
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87
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69.5
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11,677
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303,594
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$1,184,018
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$64,349
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88
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68.7
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11,544
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300,144
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$1,170,563
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$50,894
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89
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67.9
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11,414
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296,772
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$1,157,410
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$37,742
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90
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67.2
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11,287
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293,474
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$1,144,550
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$24,882
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91
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66.4
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11,163
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290,249
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$1,131,973
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$12,304
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92
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65.7
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11,042
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287,095
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$1,119,669
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