Cleaned and checked gas boiler. Checked voltage & amp draw of pump. Inspected heat exchanger & flue venting. cleaned burners & pilot assembly. Boiler is in poor. Combustion chamber has warped front and back panels. Some flue gases are spilling from boiler! Condition can worsen quickly. Recommend replacing boiler. Second-floor bedroom has leaking radiator valve. Recommend replacing. Boiler appears to be about 50 years old. Suggestions: Strongly recommend replacing boiler and radiator valve.