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hvac:roof_vent [2019/10/19 14:50] frater_secessus [sizing] |
hvac:roof_vent [2020/04/06 12:10] frater_secessus [power consumption] |
The industry standard for RV roof vents is 14"x14".((http://www.arizonarvpartscenter.com/standard-14-x-14-rv-vent-lids-s/468.htm)) OEM vents are often substandard, lacking cowling around the fan that would move more CFM. | The industry standard for RV roof vents is 14"x14".((http://www.arizonarvpartscenter.com/standard-14-x-14-rv-vent-lids-s/468.htm)) OEM vents are often substandard, lacking cowling around the fan that would move more CFM. |
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===== power consumption ===== | |
[[https://www.reddit.com/r/vandwellers/comments/83sjqg/for_anyone_wondering_how_much_power_a_maxxair_fan/|{{ https://i.redd.it/ii18f5vmm9l01.jpg?150}}]]Fans will use various levels of power at their different speed settings. For example, a 10-speed Maxxair consumes between 0.1A at lowest speed to almost 3A at full speed. See the pic to the right for one user's measurements. | |
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===== roof vents in winter ===== | ===== roof vents in winter ===== |
In winter you may want to run the vent on the lowest setting **pulling air into the camper**. This will preserve your warm air at the roof, contribute to circulation of air, and help control [[hvac:dehumidifier|humidity]]. | In winter you may want to run the vent on the lowest setting **pulling air into the camper**. This will preserve your warm air at the roof, contribute to circulation of air, and help control [[hvac:dehumidifier|humidity]]. |
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| ===== power consumption ===== |
| [[https://www.reddit.com/r/vandwellers/comments/83sjqg/for_anyone_wondering_how_much_power_a_maxxair_fan/|{{ https://i.redd.it/ii18f5vmm9l01.jpg?150}}]]Fans will use various levels of power at their different speed settings. For example, a 10-speed Maxxair consumes between 0.1A at lowest speed to almost 3A at full speed. See the pic to the right for one user's measurements. |
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| ===== installation ===== |
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| Some vans have flat (or flat-adjacent) areas to facilitate mounting fans. |
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| * [[http://img.mousetrap.net/pm/IMG_20170722_101754.jpg|mounting pad]] on a [[rv:ram_promaster|Promaster]], just behind the cab |
| * [[https://ourkaravan.com/wp-content/uploads/2018/04/01-adapter-e1530041433929.jpg|mounting pad]] on a [[rv:sprinter|Sprinter]] -- note that in this pic the owner is cutting through the ribs |
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