Ventilation & Hot Water
Exhaust fans, towel warmers and tankless, point-of-use and propane water heaters. 30 guides in this section.
Buying guides
Heated Towel Racks & Towel Warmers
VEVOR towel warmers from 4 to 10 bars compared: plug-in vs hardwired, timers, heat-up time, load capacity and…
Bathroom Exhaust Fans
VEVOR bathroom exhaust fans compared: 80 vs 110 CFM, 1.5 sones, humidity sensor, built-in heater and…
Electric Tankless Water Heaters
VEVOR electric tankless water heaters from 8 kW to 36 kW compared by flow, breaker size and use: single sink,…
Point-of-Use Water Heaters
VEVOR 2.5 to 12 gallon mini-tank water heaters compared for instant hot water at a far bathroom, ADU, studio,…
Propane Tankless & RV Water Heaters
VEVOR propane tankless water heaters (100k and 120k BTU) and RV tankless units (42k and 65k BTU) compared for…
Guides
How Many CFM Does Your Bathroom Fan Need?
Size a bathroom exhaust fan in two minutes: the 1 CFM per square foot rule, a quick chart, rules for large…
Tankless Water Heater Size for One Bathroom (Shower + Sink)
How many kW you need from an electric tankless water heater for one bathroom (shower + sink), with climate…
Tankless Water Heater Size for Two Bathrooms
How many kW you need from an electric tankless water heater for two bathrooms, with climate adjustments and…
Tankless Water Heater Size for A Single Sink Or Powder Room
How many kW you need from an electric tankless water heater for a single sink or powder room, with climate…
Exhaust Fan Size for a Small Bathroom
How many CFM a bathroom of under 50 sq ft needs, with duct tips and VEVOR fans that…
Exhaust Fan Size for a Standard Bathroom
How many CFM a bathroom of 70-110 sq ft needs, with duct tips and VEVOR fans that…
Exhaust Fan Size for a Large Master Bathroom
How many CFM a bathroom of over 110 sq ft needs, with duct tips and VEVOR fans that…
Keep a Bathroom Warm in Winter
Bathroom products for cold climates: exhaust fans with heaters, towel warmers, heated bidet seats and…
How to Prevent Mold in a Bathroom
Practical bathroom mold prevention: fan sizing and run time, humidity sensors, towel drying, caulk and…
Comparisons
Plug-in vs Hardwired Towel Warmers
Should you buy a plug-in or hardwired heated towel rack? Compare installation, cost, looks, safety and…
Tankless Water Heater vs Tank Water Heater
Tankless vs tank water heaters: upfront cost, energy use, hot water supply, space and…
Electric Tankless vs Propane Tankless
Electric vs propane tankless water heaters: venting, electrical needs, output in cold climates and off-grid…
Towel Warmer vs Exhaust Fan with Heater
Towel warmer vs heater exhaust fan: which warms you, dries towels and controls moisture…
How-tos
How to Install a Towel Warmer
Install a wall-mounted heated towel rack: choosing placement, mounting to studs or anchors, plug-in vs…
How to Replace a Bathroom Fan from Below
Replace a bathroom exhaust fan from inside the bathroom when you can't get into the attic, using a from-below…
Electric Tankless Water Heater Installation Overview
What an electric tankless water heater install involves: circuits, wire gauge, plumbing, mounting and first…
How to Flush a Tankless Water Heater
Descale a tankless water heater with a pump kit and vinegar: isolation valves, circulation time and how often…
Why Your Bathroom Fan Isn't Clearing Steam
Fix a bathroom exhaust fan that doesn't clear fog: undersized fan, blocked duct, stuck damper, dirty grille…
How to Remove and Prevent Bathroom Mold
Clean small mold patches safely and stop them coming back with ventilation, drying and caulk…
Calculators
Bathroom Exhaust Fan CFM Calculator
Free calculator: enter your bathroom size to find the exhaust fan CFM you…
Electric Tankless Water Heater Size Calculator
Calculate the kW an electric tankless water heater needs from flow rate and temperature…
Cost guides
How Much Does It Cost to Install a Bathroom Exhaust Fan?
Bathroom fan replacement and new-install costs: fan, duct, roof/wall cap, electrician…
How Much Does It Cost to Install an Electric Tankless Water Heater?
Electric tankless water heater installation cost: unit price, electrical upgrade risk, plumbing and…
Reviews
VEVOR 6-Bar Towel Warmer: Spec Review
Spec review of the VEVOR 6-bar heated towel rack: heat-up time, timer, capacity and installation notes from…
VEVOR 80 CFM Bathroom Exhaust Fan: Spec Review
Spec review of the VEVOR 80 CFM 1.5 sone bathroom fan: airflow, noise, installation without attic access and…