1.
The best method for creating opportunities to sell greenhouse heating equipment is:
Correct Answer
D. Look for signs of inefficient or worn/damaged heating equipment and start a dialog with the grower about their annual heating costs.
Explanation
The best method for creating opportunities to sell greenhouse heating equipment is to look for signs of inefficient or worn/damaged heating equipment and start a dialog with the grower about their annual heating costs. This approach allows the seller to identify potential customers who may be in need of new or improved heating equipment and engage in a conversation about their specific needs and requirements. By addressing the grower's concerns and offering solutions, the seller can increase the chances of making a sale and building a long-term relationship with the customer.
2.
Gas-fired unit heaters are a popular choice for greenhouse heating because:
Correct Answer
D. All of the above…and more.
Explanation
Gas-fired unit heaters are a popular choice for greenhouse heating because they provide multiple unit redundancy, which helps avoid the risk of crop losses in a no-heat situation. Additionally, they have low up-front and life cycle costs per Btu of output, making them cost-effective. Furthermore, they safely vent harmful flue products like ethylene, carbon monoxide, and water vapor outside, ensuring a safe and healthy environment for the plants. Therefore, all of the above reasons make gas-fired unit heaters a popular choice for greenhouse heating.
3.
What 2 things identify a grower that is currently wasting fuel on gravity-vented heating equipment?
Correct Answer
C. Open draft diverters at the top of the furnace & large diameter vertical vent stacks
Explanation
The correct answer is "Open draft diverters at the top of the furnace & large diameter vertical vent stacks." This is because open draft diverters at the top of the furnace and large diameter vertical vent stacks indicate that the heating equipment is using gravity-vented heating. Gravity-vented heating equipment is inefficient and wastes fuel, as it relies on natural convection to remove exhaust gases. The open draft diverters and large diameter vent stacks are necessary to create enough draft for the exhaust gases to escape, indicating that the equipment is not operating efficiently.
4.
The big reason why gravity vented unit heaters are the most inefficient type is because:
Correct Answer
B. Warm indoor air escapes through the open draft diverter & large diameter vertical stack.
Explanation
Gravity vented unit heaters are the most inefficient type because warm indoor air escapes through the open draft diverter and large diameter vertical stack. This means that the heat produced by the unit is not effectively circulated and instead escapes out of the system. This results in a waste of energy and lower heating efficiency.
5.
Replacing failed heat exchangers in gravity vented unit heaters is a waste of money because:
Correct Answer
D. All of the above
Explanation
Replacing failed heat exchangers in gravity vented unit heaters is a waste of money because the combined costs of parts and labor can be as high as replacing the entire unit with a new one. Additionally, replacement heat exchangers typically only come with a 6-month warranty, whereas new units with stainless steel heat exchangers often have a 10-year warranty. Furthermore, even if the unit is repaired, it will still waste energy costs at only 65% seasonal efficiency. Therefore, all of the given reasons make it clear that replacing failed heat exchangers in gravity vented unit heaters is not a cost-effective solution.
6.
In addition to saving heating costs over gravity vented unit heaters, separated combustion unit heaters last longer because:
Correct Answer
A. Heat exchangers & burners are protected from the high-humidity and chemical vapors commonly found inside greenhouses.
Explanation
Separated combustion unit heaters last longer because their heat exchangers and burners are protected from the high-humidity and chemical vapors commonly found inside greenhouses. This protection prevents corrosion and damage to the internal components, resulting in a longer lifespan for the unit.
7.
At 93% minimum thermal & seasonal efficiency, Modine’s Effinity93 high-efficiency separated combustion unit heaters are the most efficient gas-fired unit heaters in North America.
Correct Answer
A. True
Explanation
Modine's Effinity93 high-efficiency separated combustion unit heaters have a minimum thermal and seasonal efficiency of 93%, making them the most efficient gas-fired unit heaters in North America. This means that these unit heaters are able to convert a high percentage of the input energy into heat, resulting in less wasted energy and lower operating costs. Therefore, the statement is true.
8.
When units with different efficiencies are heating the same space, the combined efficiency is maximized by:
Correct Answer
B. Setting the thermostat a little lower on the least efficient unit than the most efficient unit.
Explanation
Setting the thermostat a little lower on the least efficient unit than the most efficient unit maximizes the combined efficiency when units with different efficiencies are heating the same space. This is because the least efficient unit requires more energy to reach the desired temperature, so by setting its thermostat lower, it will run less frequently and consume less energy overall. The most efficient unit, on the other hand, can reach the desired temperature more quickly and efficiently, so setting its thermostat slightly higher will still maintain the desired temperature while reducing its energy consumption.
9.
If a grower refuses to buy Efinity93 units in a part-year greenhouse because fuel savings payback is too long, the next best step is to ask the grower if they would consider:
Correct Answer
C. Replacing the failed unit in the part-year greenhouse with a working unit from one of their full-year greenhouses and replacing the unit from the full-year greenhouse with an Efinity93, thereby boosting their efficiencies in both greenhouses with a single unit.
Explanation
The next best step is to replace the failed unit in the part-year greenhouse with a working unit from one of their full-year greenhouses and replace the unit from the full-year greenhouse with an Efinity93. This solution allows for the boost in efficiencies in both greenhouses with a single unit, addressing the grower's concern about the long payback period for fuel savings.
10.
Options for growers to help defray the up-front cost and shorten the payback period for upgrading to high-efficiency heating equipment include:
Correct Answer
D. All of the above
Explanation
The correct answer is "All of the above". This means that all of the options mentioned (government tax incentives & grants, natural gas utility rebate programs, and finance & leasing options) are available for growers to help defray the up-front cost and shorten the payback period for upgrading to high-efficiency heating equipment.