energy efficiency
41 questions
How should I insulate an attached garage ceiling to improve energy efficiency and prevent condensation?
1,109 views
moisture control
insulation
How do I decide between tank and tankless water heaters for energy use and installation cost?
811 views
budget
plumbing
How do I choose between tank and tankless water heaters for my home's hot water needs?
707 views
water heaters
safety
How do I determine if my older home's exterior walls need added insulation?
971 views
home inspection
heating
What's the easiest way to reduce cold drafts in an older home without major renovations?
763 views
weatherization
insulation
How do I choose the right water heater size and fuel type for my home?
624 views
water heaters
safety
How can I stop cold drafts coming through an old home's floor without removing flooring?
865 views
weatherization
insulation
Should HVAC ducts in an unconditioned crawlspace be insulated and sealed, and how?
2,238 views
insulation
hvac
How can I reduce drafts and heat loss around windows and exterior doors?
648 views
doors
windows
How can I weatherproof an old mail slot or door opening to reduce drafts and heat loss?
953 views
doors
insulation
What's the most cost-effective way to improve insulation and reduce drafts in a 100+ year-old house?
624 views
air sealing
insulation
How can I increase hot water availability without replacing my water heater?
740 views
plumbing
water heater
How do I stop drafts from old windows without replacing them?
620 views
windows
insulation
How do I estimate whether replacing an old furnace will pay back in energy savings?
633 views
heating
costs
How can I add insulation to existing walls without removing drywall?
1,443 views
walls
safety
How do I tell if exterior walls lack insulation and what are low-cost fixes?
754 views
weatherization
home inspection
How can I efficiently insulate a detached garage for year-round use on a budget?
756 views
weatherization
garages
What are the most effective low-cost methods to reduce drafts around windows and doors?
666 views
doors
windows
How much can upgrading attic insulation reduce my annual heating and cooling costs?
629 views
attic
insulation
When should HVAC ductwork be replaced rather than repaired or sealed?
373 views
safety
hvac
How do I choose between on-demand and tank water heaters for a small household?
449 views
water heaters
safety
What's the best DIY way to reduce heat loss through garage doors?
513 views
insulation
garage
What's the simplest way to add hot water recirculation to reduce wait time and water waste?
467 views
tools
water heaters
How do I troubleshoot a sudden large increase in home electricity usage?
924 views
troubleshooting
electrical
How can I upgrade attic insulation and ventilation safely and affordably?
484 views
ventilation
attic
What's the most cost-effective way to improve basement heating and reduce drafts?
354 views
weatherization
basement
What's the most effective, low-cost way to reduce moisture and drafts in an older uninsulated home?
388 views
weatherization
moisture control
What inexpensive methods improve insulation for single-pane windows?
545 views
windows
insulation
How can I tell if my rim joist needs sealing or insulation repair?
419 views
basement
air sealing
What's the most cost-effective way to insulate a garage ceiling without removing drywall?
861 views
safety
insulation
How do I decide between repairing existing wood windows or replacing with full-frame units?
609 views
carpentry
windows
How do I reduce heat loss and cold drafts in a room with a metal or tin roof?
692 views
roofing
building science
How can I provide make-up air for exhaust fans in a home without a central HVAC system?
494 views
ventilation
safety
What factors should I consider when choosing a replacement water heater for efficiency and cost?
453 views
water heaters
safety
How do I insulate a drafty exterior wall from the interior without causing mold or moisture issues?
510 views
moisture control
building science
What's the best way to insulate a rim joist (beam rim) in an older home?
622 views
basement
safety
Is a ductless mini-split a cost-effective solution for heating or cooling a single room?
445 views
heating
hvac
Can I convert a vented attic into conditioned space, and what insulation steps are required?
761 views
attic
insulation
How can I heat and cool a small upstairs bedroom affordably without running new ductwork?
556 views
heating
hvac
How do I replace weather stripping around doors?
1,004 views
doors
carpentry
How can I improve insulation in my attic?
448 views
safety
attic