In general, 80 degrees is too hot for a house if people are inside.
Above 80F, or 25C, no known risk in an otherwise healthy person.
An influential limit
After an influential study in 2010, climate researchers often use a wet bulb temperature of 35 degrees C — roughly equivalent to 95 degrees F at 100% humidity — as an upper limit for human survival and adaptability without cooling.
It's advisable to keep your home below 80 degrees throughout the summer. A house that's too warm can be dangerous to people, pets, and the soft surfaces in your home. Set the winter temperature to 68 degrees when you're awake and 62 degrees when you're sleeping.
Optimizing Thermostat Settings
The DOE recommends a temperature range from 68 degrees up to 72 degrees. If elderly persons are residing in the house, many sources recommend higher temperatures — up to 78 degrees.
In general, 80 degrees is too hot for a house if people are inside. However, if people aren't home during the day or for vacation during the summer, an indoor temperature of 80 degrees can save energy until you return and lower the temperature.
People who live with long-term health conditions are more vulnerable to the effects of heat, including cardiovascular conditions and diabetes – with the temperature in their homes making it much harder to manage their health.
More importantly, it's a good idea that you keep your room at a good temperature to avoid any health problems especially for the elderly. As mentioned on the above table, your living room should ideally be between 21°C – 23°C and your bedroom should be between 17°C – 19°C.
It's important to note that an indoor temperature of less than 16°C increases the risk of asthma and other respiratory conditions while going below 12°C puts the cardiovascular system under stress. A cold home can also increase your risk of depression and confusion.
All other dogs must have some method of conserving body heat (such as dry bedding, solid resting surfaces, heat lamps, or other provisions) if the temperature is less than 50 °F. Dogs cannot be housed in temperatures above 85 °F for more than 4 consecutive hours.
“Pipes can expand in high temperatures, leading to leaks or even bursts, especially in older systems. And when it comes to electricity, the increased power consumption during hot spells can overload your system, potentially causing circuit issues or, in worst-case scenarios, electrical fires.”
A core body temperature of 104 degrees Fahrenheit (40 degrees Celsius) or higher is the main sign of heatstroke. Change in mental state or behavior. Confusion, agitation, slurred speech, irritability, delirium, seizures and coma can all result from heatstroke. Change in sweating pattern.
For most people, the temperature in the bedroom at night should not exceed 72 degrees Fahrenheit, and it should be even lower for people that sleep best in a cool bedroom.
Make your room comfortably cool
Of course, window and portable air conditioners are just as effective and come with a lower price tag. While the exact temperature varies from person to person, Ebben suggests keeping your room in the high 60s or low 70s during the night.
CALIFORNIA OCCUPATIONAL SAFETY AND HEALTH STANDARDS BOARD
Heat Illness Prevention in Indoor Places of Employment. (a) Scope and Application. (1) This section applies to all indoor work areas where the temperature equals or exceeds 82 degrees Fahrenheit when employees are present.
However, the recommendation regarding risk of exposure to high indoor temperatures is only "conditional". Minimal-risk high temperatures range from about 21 to 30 °C (70 to 86 °F) depending on the region, with maximum acceptable temperatures between 25 and 32 °C (77 and 90 °F).
Hazardous heat exposure can occur indoors or outdoors, and can occur during any season if the conditions are right, not only during heat waves. The following is a list of some industries where workers have suffered heat-related illnesses.
Raymond says the highest wet-bulb temperature that humans can survive when exposed to the elements for at least six hours is about 95 degrees Fahrenheit (35 degrees Celsius).
A room temperature of 18 – 22 ° C and a relative humidity of 40% – 60% is perceived by most people as pleasant and it is also ideal for the fabric of the building. Check the values in the living room and bedrooms regularly to reduce the risk of mould.
Heat can cause serious and potentially fatal health problems such as heat exhaustion and heatstroke, trigger sudden events like heart attack or stroke, or worsen existing medical conditions like kidney or lung disease.
Any temperature higher than 25.56 degrees Celsius or 78 degrees Fahrenheit is too hot for a house.
Figures from the Warm This Winter campaign reveal that 4.5m (8% of the population)[1] have been so hot in their home that it has made them unwell in the last 12 months, dubbed the 'Hot House Syndrome'.
Humans need to sweat to survive in warm conditions, and that's only possible if the combination of temperature and humidity – known as the wet-bulb temperature – stays below around 35°C. According to a 2012 study by scientists at MIT, this limit could be reached globally if our planet warms by around 12°C.