Whether it's worth installing a gas boiler now depends on various factors, such as the age and condition of your current heating system, your energy bills, and the availability and price of natural gas in your area. Generally, natural gas boilers are more energy-efficient and environmentally friendly than other heating options, such as oil or electric heating. This means that they can save you money on your energy bills and reduce your carbon footprint. However, the upfront cost of installation may be significant. It's essential to do your research, consider your options, and consult with a licensed HVAC contractor to determine if installing a gas boiler is worth it for your specific situation.