energy efficiency
41 questions
How should I insulate an attached garage ceiling to improve energy efficiency and prevent condensation?
994 views
moisture control
insulation
How do I decide between tank and tankless water heaters for energy use and installation cost?
734 views
budget
plumbing
How do I choose between tank and tankless water heaters for my home's hot water needs?
641 views
water heaters
safety
How do I determine if my older home's exterior walls need added insulation?
887 views
home inspection
heating
What's the easiest way to reduce cold drafts in an older home without major renovations?
698 views
weatherization
insulation
How do I choose the right water heater size and fuel type for my home?
572 views
water heaters
safety
How can I stop cold drafts coming through an old home's floor without removing flooring?
804 views
weatherization
insulation
Should HVAC ducts in an unconditioned crawlspace be insulated and sealed, and how?
2,132 views
insulation
hvac
How can I reduce drafts and heat loss around windows and exterior doors?
615 views
doors
windows
How can I weatherproof an old mail slot or door opening to reduce drafts and heat loss?
882 views
doors
insulation
What's the most cost-effective way to improve insulation and reduce drafts in a 100+ year-old house?
589 views
air sealing
insulation
How can I increase hot water availability without replacing my water heater?
684 views
plumbing
water heater
How do I stop drafts from old windows without replacing them?
576 views
windows
insulation
How do I estimate whether replacing an old furnace will pay back in energy savings?
585 views
heating
costs
How can I add insulation to existing walls without removing drywall?
1,319 views
walls
safety
How do I tell if exterior walls lack insulation and what are low-cost fixes?
716 views
weatherization
home inspection
How can I efficiently insulate a detached garage for year-round use on a budget?
708 views
weatherization
garages
What are the most effective low-cost methods to reduce drafts around windows and doors?
623 views
doors
windows
How much can upgrading attic insulation reduce my annual heating and cooling costs?
584 views
attic
insulation
When should HVAC ductwork be replaced rather than repaired or sealed?
342 views
safety
hvac
How do I choose between on-demand and tank water heaters for a small household?
419 views
water heaters
safety
What's the best DIY way to reduce heat loss through garage doors?
478 views
insulation
garage
What's the simplest way to add hot water recirculation to reduce wait time and water waste?
438 views
tools
water heaters
How do I troubleshoot a sudden large increase in home electricity usage?
850 views
troubleshooting
electrical
How can I upgrade attic insulation and ventilation safely and affordably?
442 views
ventilation
attic
What's the most cost-effective way to improve basement heating and reduce drafts?
335 views
weatherization
basement
What's the most effective, low-cost way to reduce moisture and drafts in an older uninsulated home?
364 views
weatherization
moisture control
What inexpensive methods improve insulation for single-pane windows?
504 views
windows
insulation
How can I tell if my rim joist needs sealing or insulation repair?
397 views
basement
air sealing
What's the most cost-effective way to insulate a garage ceiling without removing drywall?
807 views
safety
insulation
How do I decide between repairing existing wood windows or replacing with full-frame units?
583 views
carpentry
windows
How do I reduce heat loss and cold drafts in a room with a metal or tin roof?
620 views
roofing
building science
How can I provide make-up air for exhaust fans in a home without a central HVAC system?
455 views
ventilation
safety
What factors should I consider when choosing a replacement water heater for efficiency and cost?
430 views
water heaters
safety
How do I insulate a drafty exterior wall from the interior without causing mold or moisture issues?
478 views
moisture control
building science
What's the best way to insulate a rim joist (beam rim) in an older home?
572 views
basement
safety
Is a ductless mini-split a cost-effective solution for heating or cooling a single room?
418 views
heating
hvac
Can I convert a vented attic into conditioned space, and what insulation steps are required?
720 views
attic
insulation
How can I heat and cool a small upstairs bedroom affordably without running new ductwork?
524 views
heating
hvac
How do I replace weather stripping around doors?
924 views
doors
carpentry
How can I improve insulation in my attic?
401 views
safety
attic